21808508

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{1063}}^1$

素因数の和:1313

約数の個数: 24

約数和(自身を含む): 40040448

約数和(自身を除く): 18231940

約数列:

[1, 2, 4, 23, 46, 92, 223, 446, 892, 1063, 2126, 4252, 5129, 10258, 20516, 24449, 48898, 97796, 237049, 474098, 948196, 5452127, 10904254, 21808508]

約数ペア:

[(1, 21808508), (2, 10904254), (4, 5452127), (23, 948196), (46, 474098), (92, 237049), (223, 97796), (446, 48898), (892, 24449), (1063, 20516), (2126, 10258), (4252, 5129)]