Q: What is the sum of all factors of the number 81,021 excluding 81,021?

 A: 28,419

Why is 28,419 the sum of all factors of 81,021, excluding 81,021?

The factors of the number 81,021 are: 1, 3, 113, 239, 339, 717, 27007, 81021.

If you add them up, you will get the total of 81,049. Now subtract 81,021 to get 28,419


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