21220054

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{5153}}^1$

素因数の和:5255

約数の個数: 16

約数和(自身を含む): 33397920

約数和(自身を除く): 12177866

約数列:

[1, 2, 29, 58, 71, 142, 2059, 4118, 5153, 10306, 149437, 298874, 365863, 731726, 10610027, 21220054]

約数ペア:

[(1, 21220054), (2, 10610027), (29, 731726), (58, 365863), (71, 298874), (142, 149437), (2059, 10306), (4118, 5153)]