Q: What is the sum of all factors of the number 42,540,021 excluding 42,540,021?

 A: 18,906,689

Why is 18,906,689 the sum of all factors of 42,540,021, excluding 42,540,021?

The factors of the number 42,540,021 are: 1, 3, 9, 4726669, 14180007, 42540021.

If you add them up, you will get the total of 42,540,039. Now subtract 42,540,021 to get 18,906,689


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