14. In the right figure, there are ( ) rectangles, and the sum of the areas of these rectangles is ( ).

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【Answer】 601672
【Analysis】 Number of rectangles: $(4+3+2+1) \times(3+2+1)=60$  Area sum: $(1+5+7+3+6+12+10+13+15+16) \times(3+1+2+4+3+6)=88 \times 19=1672$【Lecture Note Comparison】Long-term class Summer Lecture 7 Geometric Counting;