209380731

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{2069}}^1$

素因数の和:2219

約数の個数: 32

約数和(自身を含む): 328550400

約数和(自身を除く): 119169669

約数列:

[1, 3, 7, 21, 61, 79, 183, 237, 427, 553, 1281, 1659, 2069, 4819, 6207, 14457, 14483, 33733, 43449, 101199, 126209, 163451, 378627, 490353, 883463, 1144157, 2650389, 3432471, 9970511, 29911533, 69793577, 209380731]

約数ペア:

[(1, 209380731), (3, 69793577), (7, 29911533), (21, 9970511), (61, 3432471), (79, 2650389), (183, 1144157), (237, 883463), (427, 490353), (553, 378627), (1281, 163451), (1659, 126209), (2069, 101199), (4819, 43449), (6207, 33733), (14457, 14483)]