20581358

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{311}}^1$

素因数の和:512

約数の個数: 32

約数和(自身を含む): 36840960

約数和(自身を除く): 16259602

約数列:

[1, 2, 7, 14, 29, 58, 163, 203, 311, 326, 406, 622, 1141, 2177, 2282, 4354, 4727, 9019, 9454, 18038, 33089, 50693, 63133, 66178, 101386, 126266, 354851, 709702, 1470097, 2940194, 10290679, 20581358]

約数ペア:

[(1, 20581358), (2, 10290679), (7, 2940194), (14, 1470097), (29, 709702), (58, 354851), (163, 126266), (203, 101386), (311, 66178), (326, 63133), (406, 50693), (622, 33089), (1141, 18038), (2177, 9454), (2282, 9019), (4354, 4727)]