Q: What is the sum of all factors of the number 21,002,001 excluding 21,002,001?

 A: 7,038,063

Why is 7,038,063 the sum of all factors of 21,002,001, excluding 21,002,001?

The factors of the number 21,002,001 are: 1, 3, 821, 2463, 8527, 25581, 7000667, 21002001.

If you add them up, you will get the total of 21,002,008. Now subtract 21,002,001 to get 7,038,063


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