20957418

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{263}}^1$

素因数の和:523

約数の個数: 48

約数和(自身を含む): 48185280

約数和(自身を除く): 27227862

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 233, 263, 342, 466, 526, 699, 789, 1398, 1578, 2097, 2367, 4194, 4427, 4734, 4997, 8854, 9994, 13281, 14991, 26562, 29982, 39843, 44973, 61279, 79686, 89946, 122558, 183837, 367674, 551511, 1103022, 1164301, 2328602, 3492903, 6985806, 10478709, 20957418]

約数ペア:

[(1, 20957418), (2, 10478709), (3, 6985806), (6, 3492903), (9, 2328602), (18, 1164301), (19, 1103022), (38, 551511), (57, 367674), (114, 183837), (171, 122558), (233, 89946), (263, 79686), (342, 61279), (466, 44973), (526, 39843), (699, 29982), (789, 26562), (1398, 14991), (1578, 13281), (2097, 9994), (2367, 8854), (4194, 4997), (4427, 4734)]