Q: What is the sum of all factors of the number 18,945 excluding 18,945?

 A: 13,971

Why is 13,971 the sum of all factors of 18,945, excluding 18,945?

The factors of the number 18,945 are: 1, 3, 5, 9, 15, 45, 421, 1263, 2105, 3789, 6315, 18945.

If you add them up, you will get the total of 18,958. Now subtract 18,945 to get 13,971


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