Q: What is the sum of all factors of the number 420,122,421 excluding 420,122,421?

 A: 197,007,339

Why is 197,007,339 the sum of all factors of 420,122,421, excluding 420,122,421?

The factors of the number 420,122,421 are: 1, 3, 9, 59, 177, 531, 791191, 2373573, 7120719, 46680269, 140040807, 420122421.

If you add them up, you will get the total of 420,122,618. Now subtract 420,122,421 to get 197,007,339


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