14. A four-digit number, if a comma is placed between the hundreds and tens place, can be written as two two-digit numbers $(3126 \rightarrow 31,62)$. If the two two-digit numbers have an integer multiple relationship, we call such a four-digit number a "clever number". If you select 4 numbers from $1, 2, 4, 6, 8$ to form a four-digit number, how many "clever numbers" are there? $\qquad$
【Answer】 12
【Analysis】 We start from the smaller number and perform an orderly enumeration.
1) The smaller number is 12, the larger number can be 48 or 84
2) The smaller number is 14, the larger number can be 28
3) The smaller number is 16, the larger number can be 48
4) The smaller number is 18, the larger number does not exist
5) The smaller number is 21, the larger number can be 84
6) The smaller number is 24, the larger number does not exist
7) The smaller number is 26, the larger number does not exist
8) The smaller number is 28, the larger number does not exist
9) The smaller number is 41, the larger number can be 82
10) The smaller number is 42, the larger number does not exist
11) The smaller number is 46 or 48, the larger number does not exist
Therefore, there are 6 such pairs. Considering that the order can be reversed, there are a total of $6 \times 2=12$ pairs.