Q: What is the sum of all factors of the number 972,621 excluding 972,621?

 A: 680,499

Why is 680,499 the sum of all factors of 972,621, excluding 972,621?

The factors of the number 972,621 are: 1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 163, 221, 351, 459, 489, 663, 1467, 1989, 2119, 2771, 4401, 5967, 6357, 8313, 19071, 24939, 36023, 57213, 74817, 108069, 324207, 972621.

If you add them up, you will get the total of 973,301. Now subtract 972,621 to get 680,499


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