20785806

素因数分解:

$2^1\times 3^2\times {\mathrm{661}}^1\times {\mathrm{1747}}^1$

素因数の和:2416

約数の個数: 24

約数和(自身を含む): 45129864

約数和(自身を除く): 24344058

約数列:

[1, 2, 3, 6, 9, 18, 661, 1322, 1747, 1983, 3494, 3966, 5241, 5949, 10482, 11898, 15723, 31446, 1154767, 2309534, 3464301, 6928602, 10392903, 20785806]

約数ペア:

[(1, 20785806), (2, 10392903), (3, 6928602), (6, 3464301), (9, 2309534), (18, 1154767), (661, 31446), (1322, 15723), (1747, 11898), (1983, 10482), (3494, 5949), (3966, 5241)]