Q: What is the sum of all factors of the number 21,123,223 excluding 21,123,223?

 A: 3,759,977

Why is 3,759,977 the sum of all factors of 21,123,223, excluding 21,123,223?

The factors of the number 21,123,223 are: 1, 11, 23, 29, 253, 319, 667, 2879, 7337, 31669, 66217, 83491, 728387, 918401, 1920293, 21123223.

If you add them up, you will get the total of 21,123,226. Now subtract 21,123,223 to get 3,759,977


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