17980910

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4271}}^1$

素因数の和:4699

約数の個数: 16

約数和(自身を含む): 32450112

約数和(自身を除く): 14469202

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 4271, 8542, 21355, 42710, 1798091, 3596182, 8990455, 17980910]

約数ペア:

[(1, 17980910), (2, 8990455), (5, 3596182), (10, 1798091), (421, 42710), (842, 21355), (2105, 8542), (4210, 4271)]