Q: What is the sum of all factors of the number 420,647 excluding 420,647?

 A: 18,313

Why is 18,313 the sum of all factors of 420,647, excluding 420,647?

The factors of the number 420,647 are: 1, 23, 18289, 420647.

If you add them up, you will get the total of 420,665. Now subtract 420,647 to get 18,313


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