20529388

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{4129}}^1$

素因数の和:4257

約数の個数: 24

約数和(自身を含む): 39548880

約数和(自身を除く): 19019492

約数列:

[1, 2, 4, 11, 22, 44, 113, 226, 452, 1243, 2486, 4129, 4972, 8258, 16516, 45419, 90838, 181676, 466577, 933154, 1866308, 5132347, 10264694, 20529388]

約数ペア:

[(1, 20529388), (2, 10264694), (4, 5132347), (11, 1866308), (22, 933154), (44, 466577), (113, 181676), (226, 90838), (452, 45419), (1243, 16516), (2486, 8258), (4129, 4972)]