20913672

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3943}}^1$

素因数の和:3982

約数の個数: 64

約数和(自身を含む): 59633280

約数和(自身を除く): 38719608

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 51, 52, 68, 78, 102, 104, 136, 156, 204, 221, 312, 408, 442, 663, 884, 1326, 1768, 2652, 3943, 5304, 7886, 11829, 15772, 23658, 31544, 47316, 51259, 67031, 94632, 102518, 134062, 153777, 201093, 205036, 268124, 307554, 402186, 410072, 536248, 615108, 804372, 871403, 1230216, 1608744, 1742806, 2614209, 3485612, 5228418, 6971224, 10456836, 20913672]

約数ペア:

[(1, 20913672), (2, 10456836), (3, 6971224), (4, 5228418), (6, 3485612), (8, 2614209), (12, 1742806), (13, 1608744), (17, 1230216), (24, 871403), (26, 804372), (34, 615108), (39, 536248), (51, 410072), (52, 402186), (68, 307554), (78, 268124), (102, 205036), (104, 201093), (136, 153777), (156, 134062), (204, 102518), (221, 94632), (312, 67031), (408, 51259), (442, 47316), (663, 31544), (884, 23658), (1326, 15772), (1768, 11829), (2652, 7886), (3943, 5304)]