18620830

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4423}}^1$

素因数の和:4851

約数の個数: 16

約数和(自身を含む): 33604704

約数和(自身を除く): 14983874

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 4423, 8846, 22115, 44230, 1862083, 3724166, 9310415, 18620830]

約数ペア:

[(1, 18620830), (2, 9310415), (5, 3724166), (10, 1862083), (421, 44230), (842, 22115), (2105, 8846), (4210, 4423)]