Q: What is the sum of all factors of the number 258,129 excluding 258,129?

 A: 153,711

Why is 153,711 the sum of all factors of 258,129, excluding 258,129?

The factors of the number 258,129 are: 1, 3, 9, 23, 29, 43, 69, 87, 129, 207, 261, 387, 667, 989, 1247, 2001, 2967, 3741, 6003, 8901, 11223, 28681, 86043, 258129.

If you add them up, you will get the total of 258,282. Now subtract 258,129 to get 153,711


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