Q: What is the sum of all factors of the number 21,512 excluding 21,512?

 A: 18,838

Why is 18,838 the sum of all factors of 21,512, excluding 21,512?

The factors of the number 21,512 are: 1, 2, 4, 8, 2689, 5378, 10756, 21512.

If you add them up, you will get the total of 21,530. Now subtract 21,512 to get 18,838


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