Q: What is the sum of all factors of the number 131,115,135 excluding 131,115,135?

Why is 91,009,761 the sum of all factors of 131,115,135, excluding 131,115,135?

The factors of the number 131,115,135 are: 1, 3, 5, 15, 17, 51, 85, 255, 514177, 1542531, 2570885, 7712655, 8741009, 26223027, 43705045, 131115135.

If you add them up, you will get the total of 131,115,226. Now subtract 131,115,135 to get 91,009,761

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