20645550723

素因数分解:

$3^1\times 7^1\times {\mathrm{2339}}^1\times {\mathrm{420317}}^1$

素因数の和:422666

約数の個数: 16

約数和(自身を含む): 31473411840

約数和(自身を除く): 10827861117

約数列:

[1, 3, 7, 21, 2339, 7017, 16373, 49119, 420317, 1260951, 2942219, 8826657, 983121463, 2949364389, 6881850241, 20645550723]

約数ペア:

[(1, 20645550723), (3, 6881850241), (7, 2949364389), (21, 983121463), (2339, 8826657), (7017, 2942219), (16373, 1260951), (49119, 420317)]