20021655

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{12959}}^1$

素因数の和:13070

約数の個数: 16

約数和(自身を含む): 32348160

約数和(自身を除く): 12326505

約数列:

[1, 3, 5, 15, 103, 309, 515, 1545, 12959, 38877, 64795, 194385, 1334777, 4004331, 6673885, 20021655]

約数ペア:

[(1, 20021655), (3, 6673885), (5, 4004331), (15, 1334777), (103, 194385), (309, 64795), (515, 38877), (1545, 12959)]