20256786

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{389}}^1$

素因数の和:671

約数の個数: 48

約数和(自身を含む): 48185280

約数和(自身を除く): 27928494

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 263, 389, 526, 778, 789, 1167, 1578, 2334, 2367, 2893, 3501, 4279, 4734, 5786, 7002, 8558, 8679, 12837, 17358, 25674, 26037, 38511, 52074, 77022, 102307, 204614, 306921, 613842, 920763, 1125377, 1841526, 2250754, 3376131, 6752262, 10128393, 20256786]

約数ペア:

[(1, 20256786), (2, 10128393), (3, 6752262), (6, 3376131), (9, 2250754), (11, 1841526), (18, 1125377), (22, 920763), (33, 613842), (66, 306921), (99, 204614), (198, 102307), (263, 77022), (389, 52074), (526, 38511), (778, 26037), (789, 25674), (1167, 17358), (1578, 12837), (2334, 8679), (2367, 8558), (2893, 7002), (3501, 5786), (4279, 4734)]