Q: What is the sum of all factors of the number 231,213,021 excluding 231,213,021?

 A: 108,508,515

Why is 108,508,515 the sum of all factors of 231,213,021, excluding 231,213,021?

The factors of the number 231,213,021 are: 1, 3, 13, 39, 43, 129, 559, 1677, 137873, 413619, 1792349, 5377047, 5928539, 17785617, 77071007, 231213021.

If you add them up, you will get the total of 231,213,129. Now subtract 231,213,021 to get 108,508,515


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