Q: What is the sum of all factors of the number 157,421 excluding 157,421?

 A: 15,745

Why is 15,745 the sum of all factors of 157,421, excluding 157,421?

The factors of the number 157,421 are: 1, 11, 121, 1301, 14311, 157421.

If you add them up, you will get the total of 157,436. Now subtract 157,421 to get 15,745


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