209678612

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{21563}}^1$

素因数の和:21608

約数の個数: 48

約数和(自身を含む): 456466752

約数和(自身を除く): 246788140

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 143, 187, 221, 286, 374, 442, 572, 748, 884, 2431, 4862, 9724, 21563, 43126, 86252, 237193, 280319, 366571, 474386, 560638, 733142, 948772, 1121276, 1466284, 3083509, 4032281, 4765423, 6167018, 8064562, 9530846, 12334036, 16129124, 19061692, 52419653, 104839306, 209678612]

約数ペア:

[(1, 209678612), (2, 104839306), (4, 52419653), (11, 19061692), (13, 16129124), (17, 12334036), (22, 9530846), (26, 8064562), (34, 6167018), (44, 4765423), (52, 4032281), (68, 3083509), (143, 1466284), (187, 1121276), (221, 948772), (286, 733142), (374, 560638), (442, 474386), (572, 366571), (748, 280319), (884, 237193), (2431, 86252), (4862, 43126), (9724, 21563)]