Q: What is the sum of all factors of the number 2,172,839 excluding 2,172,839?

 A: 1

Why is 1 the sum of all factors of 2,172,839, excluding 2,172,839?

The factors of the number 2,172,839 are: 1, 2172839.

If you add them up, you will get the total of 2,172,840. Now subtract 2,172,839 to get 1


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