Q: What is the sum of all factors of the number 21,431,213 excluding 21,431,213?

 A: 77,647

Why is 77,647 the sum of all factors of 21,431,213, excluding 21,431,213?

The factors of the number 21,431,213 are: 1, 277, 77369, 21431213.

If you add them up, you will get the total of 21,431,290. Now subtract 21,431,213 to get 77,647


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