18135481

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{617}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 24917760

約数和(自身を除く): 6782279

約数列:

[1, 7, 13, 17, 19, 91, 119, 133, 221, 247, 323, 617, 1547, 1729, 2261, 4199, 4319, 8021, 10489, 11723, 29393, 56147, 73423, 82061, 136357, 152399, 199291, 954499, 1066793, 1395037, 2590783, 18135481]

約数ペア:

[(1, 18135481), (7, 2590783), (13, 1395037), (17, 1066793), (19, 954499), (91, 199291), (119, 152399), (133, 136357), (221, 82061), (247, 73423), (323, 56147), (617, 29393), (1547, 11723), (1729, 10489), (2261, 8021), (4199, 4319)]