20403357

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{9871}}^1$

素因数の和:9940

約数の個数: 16

約数和(自身を含む): 29852928

約数和(自身を除く): 9449571

約数列:

[1, 3, 13, 39, 53, 159, 689, 2067, 9871, 29613, 128323, 384969, 523163, 1569489, 6801119, 20403357]

約数ペア:

[(1, 20403357), (3, 6801119), (13, 1569489), (39, 523163), (53, 384969), (159, 128323), (689, 29613), (2067, 9871)]