Q: What is the sum of all factors of the number 20,436 excluding 20,436?

 A: 31,308

Why is 31,308 the sum of all factors of 20,436, excluding 20,436?

The factors of the number 20,436 are: 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 131, 156, 262, 393, 524, 786, 1572, 1703, 3406, 5109, 6812, 10218, 20436.

If you add them up, you will get the total of 20,467. Now subtract 20,436 to get 31,308


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