Q: What is the sum of all factors of the number 20,512,521 excluding 20,512,521?

Why is 10,343,931 the sum of all factors of 20,512,521, excluding 20,512,521?

The factors of the number 20,512,521 are: 1, 3, 9, 27, 81, 157, 471, 1413, 1613, 4239, 4839, 12717, 14517, 43551, 130653, 253241, 759723, 2279169, 6837507, 20512521.

If you add them up, you will get the total of 20,512,531. Now subtract 20,512,521 to get 10,343,931

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