Q: What is the sum of all factors of the number 128,709 excluding 128,709?

 A: 91,995

Why is 91,995 the sum of all factors of 128,709, excluding 128,709?

The factors of the number 128,709 are: 1, 3, 7, 9, 21, 27, 63, 81, 189, 227, 567, 681, 1589, 2043, 4767, 6129, 14301, 18387, 42903, 128709.

If you add them up, you will get the total of 128,800. Now subtract 128,709 to get 91,995


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