Q: What is the sum of all factors of the number 7,129,981 excluding 7,129,981?

Why is 18,719 the sum of all factors of 7,129,981, excluding 7,129,981?

The factors of the number 7,129,981 are: 1, 389, 18329, 7129981.

If you add them up, you will get the total of 7,129,999. Now subtract 7,129,981 to get 18,719

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