Q: What is the sum of all factors of the number 420,243 excluding 420,243?

 A: 145,005

Why is 145,005 the sum of all factors of 420,243, excluding 420,243?

The factors of the number 420,243 are: 1, 3, 127, 381, 1103, 3309, 140081, 420243.

If you add them up, you will get the total of 420,388. Now subtract 420,243 to get 145,005


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