20205657

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{479}}^1$

素因数の和:637

約数の個数: 24

約数和(自身を含む): 30201600

約数和(自身を除く): 9995943

約数列:

[1, 3, 9, 43, 109, 129, 327, 387, 479, 981, 1437, 4311, 4687, 14061, 20597, 42183, 52211, 61791, 156633, 185373, 469899, 2245073, 6735219, 20205657]

約数ペア:

[(1, 20205657), (3, 6735219), (9, 2245073), (43, 469899), (109, 185373), (129, 156633), (327, 61791), (387, 52211), (479, 42183), (981, 20597), (1437, 14061), (4311, 4687)]