Q: What is the sum of all factors of the number 87,021 excluding 87,021?

A: 54,099

Why is 54,099 the sum of all factors of 87,021, excluding 87,021?

The factors of the number 87,021 are: 1, 3, 9, 11, 27, 33, 99, 293, 297, 879, 2637, 3223, 7911, 9669, 29007, 87021.

If you add them up, you will get the total of 87,075. Now subtract 87,021 to get 54,099

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