Q: What is the sum of all factors of the number 161,603 excluding 161,603?

 A: 18,493

Why is 18,493 the sum of all factors of 161,603, excluding 161,603?

The factors of the number 161,603 are: 1, 13, 31, 401, 403, 5213, 12431, 161603.

If you add them up, you will get the total of 161,621. Now subtract 161,603 to get 18,493


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