20387418

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{4159}}^1$

素因数の和:4226

約数の個数: 32

約数和(自身を含む): 43929600

約数和(自身を除く): 23542182

約数列:

[1, 2, 3, 6, 19, 38, 43, 57, 86, 114, 129, 258, 817, 1634, 2451, 4159, 4902, 8318, 12477, 24954, 79021, 158042, 178837, 237063, 357674, 474126, 536511, 1073022, 3397903, 6795806, 10193709, 20387418]

約数ペア:

[(1, 20387418), (2, 10193709), (3, 6795806), (6, 3397903), (19, 1073022), (38, 536511), (43, 474126), (57, 357674), (86, 237063), (114, 178837), (129, 158042), (258, 79021), (817, 24954), (1634, 12477), (2451, 8318), (4159, 4902)]