20510742

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1$

素因数の和:373

約数の個数: 64

約数和(自身を含む): 49319424

約数和(自身を除く): 28808682

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 43, 82, 86, 123, 129, 246, 258, 277, 287, 301, 554, 574, 602, 831, 861, 903, 1662, 1722, 1763, 1806, 1939, 3526, 3878, 5289, 5817, 10578, 11357, 11634, 11911, 12341, 22714, 23822, 24682, 34071, 35733, 37023, 68142, 71466, 74046, 79499, 83377, 158998, 166754, 238497, 250131, 476994, 488351, 500262, 976702, 1465053, 2930106, 3418457, 6836914, 10255371, 20510742]

約数ペア:

[(1, 20510742), (2, 10255371), (3, 6836914), (6, 3418457), (7, 2930106), (14, 1465053), (21, 976702), (41, 500262), (42, 488351), (43, 476994), (82, 250131), (86, 238497), (123, 166754), (129, 158998), (246, 83377), (258, 79499), (277, 74046), (287, 71466), (301, 68142), (554, 37023), (574, 35733), (602, 34071), (831, 24682), (861, 23822), (903, 22714), (1662, 12341), (1722, 11911), (1763, 11634), (1806, 11357), (1939, 10578), (3526, 5817), (3878, 5289)]