Q: What is the sum of all factors of the number 421,430,221 excluding 421,430,221?

 A: 28,049,579

Why is 28,049,579 the sum of all factors of 421,430,221, excluding 421,430,221?

The factors of the number 421,430,221 are: 1, 17, 137, 2329, 180949, 3076133, 24790013, 421430221.

If you add them up, you will get the total of 421,430,249. Now subtract 421,430,221 to get 28,049,579


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