20126715

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1861}}^1$

素因数の和:1979

約数の個数: 32

約数和(自身を含む): 37180416

約数和(自身を除く): 17053701

約数列:

[1, 3, 5, 7, 15, 21, 35, 103, 105, 309, 515, 721, 1545, 1861, 2163, 3605, 5583, 9305, 10815, 13027, 27915, 39081, 65135, 191683, 195405, 575049, 958415, 1341781, 2875245, 4025343, 6708905, 20126715]

約数ペア:

[(1, 20126715), (3, 6708905), (5, 4025343), (7, 2875245), (15, 1341781), (21, 958415), (35, 575049), (103, 195405), (105, 191683), (309, 65135), (515, 39081), (721, 27915), (1545, 13027), (1861, 10815), (2163, 9305), (3605, 5583)]