Q: What is the sum of all factors of the number 21,250,820 excluding 21,250,820?

 A: 23,722,108

Why is 23,722,108 the sum of all factors of 21,250,820, excluding 21,250,820?

The factors of the number 21,250,820 are: 1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 8111, 16222, 32444, 40555, 81110, 162220, 1062541, 2125082, 4250164, 5312705, 10625410, 21250820.

If you add them up, you will get the total of 21,250,843. Now subtract 21,250,820 to get 23,722,108


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