Q: What is the sum of all factors of the number 30,705 excluding 30,705?

 A: 21,135

Why is 21,135 the sum of all factors of 30,705, excluding 30,705?

The factors of the number 30,705 are: 1, 3, 5, 15, 23, 69, 89, 115, 267, 345, 445, 1335, 2047, 6141, 10235, 30705.

If you add them up, you will get the total of 30,726. Now subtract 30,705 to get 21,135


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