20866556

素因数分解:

$2^2\times {\mathrm{149}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 37161600

約数和(自身を除く): 16295044

約数列:

[1, 2, 4, 149, 157, 223, 298, 314, 446, 596, 628, 892, 23393, 33227, 35011, 46786, 66454, 70022, 93572, 132908, 140044, 5216639, 10433278, 20866556]

約数ペア:

[(1, 20866556), (2, 10433278), (4, 5216639), (149, 140044), (157, 132908), (223, 93572), (298, 70022), (314, 66454), (446, 46786), (596, 35011), (628, 33227), (892, 23393)]