Q: What is the sum of all factors of the number 21,180 excluding 21,180?

 A: 38,292

Why is 38,292 the sum of all factors of 21,180, excluding 21,180?

The factors of the number 21,180 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 353, 706, 1059, 1412, 1765, 2118, 3530, 4236, 5295, 7060, 10590, 21180.

If you add them up, you will get the total of 21,218. Now subtract 21,180 to get 38,292


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