20740629

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:190

約数の個数: 64

約数和(自身を含む): 37255680

約数和(自身を除く): 16515051

約数列:

[1, 3, 7, 13, 17, 21, 39, 41, 51, 91, 109, 119, 123, 221, 273, 287, 327, 357, 533, 663, 697, 763, 861, 1417, 1547, 1599, 1853, 2091, 2289, 3731, 4251, 4469, 4641, 4879, 5559, 9061, 9919, 11193, 12971, 13407, 14637, 24089, 27183, 29757, 31283, 38913, 58097, 63427, 72267, 75973, 93849, 168623, 174291, 190281, 227919, 406679, 505869, 531811, 987649, 1220037, 1595433, 2962947, 6913543, 20740629]

約数ペア:

[(1, 20740629), (3, 6913543), (7, 2962947), (13, 1595433), (17, 1220037), (21, 987649), (39, 531811), (41, 505869), (51, 406679), (91, 227919), (109, 190281), (119, 174291), (123, 168623), (221, 93849), (273, 75973), (287, 72267), (327, 63427), (357, 58097), (533, 38913), (663, 31283), (697, 29757), (763, 27183), (861, 24089), (1417, 14637), (1547, 13407), (1599, 12971), (1853, 11193), (2091, 9919), (2289, 9061), (3731, 5559), (4251, 4879), (4469, 4641)]