Consider the numbers from $1$ to $32$. A game is made by placing all the numbers  in pairs and replacing each pair with the largest prime divisor of the sum of the numbers of that couple. For example, if we match the $32$ numbers as: $(1, 2), (3,4),(5, 6), (7, 8),..., (27, 28),(29, 30), (31,32)$, we get the following list of $16$ numbers: $3,7,11,5,...,11,59,7$. where there  are repetitions. The game continues in a similar way until in the end only one number remains. Determine the highest possible value from the number that remains at the end.
1. **Initial Pairing and Sum Calculation:**
   We start by pairing the numbers from 1 to 32. Let's consider the pairs as follows:
   \[
   (1, 32), (2, 31), (3, 30), \ldots, (16, 17)
   \]
   The sums of these pairs are:
   \[
   33, 33, 33, \ldots, 33 \quad \text{(16 times)}
   \]

2. **Finding the Largest Prime Divisor:**
   The sum of each pair is 33. The prime factorization of 33 is:
   \[
   33 = 3 \times 11
   \]
   Therefore, the largest prime divisor of 33 is 11. Thus, after the first round, we have:
   \[
   11, 11, 11, \ldots, 11 \quad \text{(16 times)}
   \]

3. **Second Round Pairing:**
   We now pair the 16 numbers (all 11s) in the second round:
   \[
   (11, 11), (11, 11), (11, 11), \ldots, (11, 11)
   \]
   The sums of these pairs are:
   \[
   22, 22, 22, \ldots, 22 \quad \text{(8 times)}
   \]

4. **Finding the Largest Prime Divisor:**
   The prime factorization of 22 is:
   \[
   22 = 2 \times 11
   \]
   Therefore, the largest prime divisor of 22 is 11. Thus, after the second round, we have:
   \[
   11, 11, 11, \ldots, 11 \quad \text{(8 times)}
   \]

5. **Third Round Pairing:**
   We now pair the 8 numbers (all 11s) in the third round:
   \[
   (11, 11), (11, 11), (11, 11), (11, 11)
   \]
   The sums of these pairs are:
   \[
   22, 22, 22, 22 \quad \text{(4 times)}
   \]

6. **Finding the Largest Prime Divisor:**
   As before, the largest prime divisor of 22 is 11. Thus, after the third round, we have:
   \[
   11, 11, 11, 11 \quad \text{(4 times)}
   \]

7. **Fourth Round Pairing:**
   We now pair the 4 numbers (all 11s) in the fourth round:
   \[
   (11, 11), (11, 11)
   \]
   The sums of these pairs are:
   \[
   22, 22 \quad \text{(2 times)}
   \]

8. **Finding the Largest Prime Divisor:**
   Again, the largest prime divisor of 22 is 11. Thus, after the fourth round, we have:
   \[
   11, 11 \quad \text{(2 times)}
   \]

9. **Final Round Pairing:**
   We now pair the 2 numbers (both 11s) in the final round:
   \[
   (11, 11)
   \]
   The sum of this pair is:
   \[
   22
   \]

10. **Finding the Largest Prime Divisor:**
    The largest prime divisor of 22 is 11. Thus, the final number remaining is:
    \[
    11
    \]

The final answer is $\boxed{11}$