Q: What is the sum of all factors of the number 400,222,221 excluding 400,222,221?

 A: 210,977,907

Why is 210,977,907 the sum of all factors of 400,222,221, excluding 400,222,221?

The factors of the number 400,222,221 are: 1, 3, 7, 21, 461, 1383, 3227, 9681, 41341, 124023, 289387, 868161, 19058201, 57174603, 133407407, 400222221.

If you add them up, you will get the total of 400,222,431. Now subtract 400,222,221 to get 210,977,907


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