Q: What is the sum of all factors of the number 172,828,721 excluding 172,828,721?

 A: 13,468,663

Why is 13,468,663 the sum of all factors of 172,828,721, excluding 172,828,721?

The factors of the number 172,828,721 are: 1, 13, 1181, 11257, 15353, 146341, 13294517, 172828721.

If you add them up, you will get the total of 172,828,734. Now subtract 172,828,721 to get 13,468,663


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