Q: What is the sum of all factors of the number 109,215 excluding 109,215?

A: 85,185

Why is 85,185 the sum of all factors of 109,215, excluding 109,215?

The factors of the number 109,215 are: 1, 3, 5, 9, 15, 27, 45, 135, 809, 2427, 4045, 7281, 12135, 21843, 36405, 109215.

If you add them up, you will get the total of 109,300. Now subtract 109,215 to get 85,185

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