20017965

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{121321}}^1$

素因数の和:121340

約数の個数: 16

約数和(自身を含む): 34940736

約数和(自身を除く): 14922771

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 121321, 363963, 606605, 1334531, 1819815, 4003593, 6672655, 20017965]

約数ペア:

[(1, 20017965), (3, 6672655), (5, 4003593), (11, 1819815), (15, 1334531), (33, 606605), (55, 363963), (165, 121321)]