Q: What is the sum of all factors of the number 20,394 excluding 20,394?

 A: 28,278

Why is 28,278 the sum of all factors of 20,394, excluding 20,394?

The factors of the number 20,394 are: 1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 103, 198, 206, 309, 618, 927, 1133, 1854, 2266, 3399, 6798, 10197, 20394.

If you add them up, you will get the total of 20,422. Now subtract 20,394 to get 28,278


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