20643559

素因数分解:

${\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{1171}}^1$

素因数の和:1266

約数の個数: 12

約数和(自身を含む): 22307848

約数和(自身を除く): 1664289

約数列:

[1, 17, 61, 289, 1037, 1171, 17629, 19907, 71431, 338419, 1214327, 20643559]

約数ペア:

[(1, 20643559), (17, 1214327), (61, 338419), (289, 71431), (1037, 19907), (1171, 17629)]