Q: What is the sum of all factors of the number 861 excluding 861?

 A: 483

Why is 483 the sum of all factors of 861, excluding 861?

The factors of the number 861 are: 1, 3, 7, 21, 41, 123, 287, 861.

If you add them up, you will get the total of 1,344. Now subtract 861 to get 483


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