Q: What is the sum of all factors of the number 221,420,399 excluding 221,420,399?

 A: 1

Why is 1 the sum of all factors of 221,420,399, excluding 221,420,399?

The factors of the number 221,420,399 are: 1, 221420399.

If you add them up, you will get the total of 221,420,400. Now subtract 221,420,399 to get 1


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