What is the Sum of Factors of 399?

The Sum of Factors of 399 means that you add up all the factors of 399. You may be looking for the Sum of Factors of 399 including or excluding 399 itself.

Here is the calculation and answer to the Sum of all Factors of 399 including 399:

1 + 3 + 7 + 19 + 21 + 57 + 133 + 399 = 640

Here is the calculation and answer to the Sum of Factors of 399 if you exclude 399 itself:

1 + 3 + 7 + 19 + 21 + 57 + 133 = 241

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