Q: What is the sum of all factors of the number 21,525,345 excluding 21,525,345?

 A: 17,061,555

Why is 17,061,555 the sum of all factors of 21,525,345, excluding 21,525,345?

The factors of the number 21,525,345 are: 1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 53149, 159447, 265745, 478341, 797235, 1435023, 2391705, 4305069, 7175115, 21525345.

If you add them up, you will get the total of 21,525,362. Now subtract 21,525,345 to get 17,061,555


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