20413467

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 36

約数和(自身を含む): 31936944

約数和(自身を除く): 11523477

約数列:

[1, 3, 9, 19, 57, 61, 103, 171, 183, 309, 361, 549, 927, 1083, 1159, 1957, 3249, 3477, 5871, 6283, 10431, 17613, 18849, 22021, 37183, 56547, 66063, 111549, 119377, 198189, 334647, 358131, 1074393, 2268163, 6804489, 20413467]

約数ペア:

[(1, 20413467), (3, 6804489), (9, 2268163), (19, 1074393), (57, 358131), (61, 334647), (103, 198189), (171, 119377), (183, 111549), (309, 66063), (361, 56547), (549, 37183), (927, 22021), (1083, 18849), (1159, 17613), (1957, 10431), (3249, 6283), (3477, 5871)]