Q: What is the sum of all factors of the number 462,643,221 excluding 462,643,221?

 A: 172,820,139

Why is 172,820,139 the sum of all factors of 462,643,221, excluding 462,643,221?

The factors of the number 462,643,221 are: 1, 3, 41, 123, 179, 537, 7339, 21013, 22017, 63039, 861533, 2584599, 3761327, 11283981, 154214407, 462643221.

If you add them up, you will get the total of 462,643,393. Now subtract 462,643,221 to get 172,820,139


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