20655628

素因数分解:

$2^2\times 7^1\times {\mathrm{241}}^1\times {\mathrm{3061}}^1$

素因数の和:3313

約数の個数: 24

約数和(自身を含む): 41496224

約数和(自身を除く): 20840596

約数列:

[1, 2, 4, 7, 14, 28, 241, 482, 964, 1687, 3061, 3374, 6122, 6748, 12244, 21427, 42854, 85708, 737701, 1475402, 2950804, 5163907, 10327814, 20655628]

約数ペア:

[(1, 20655628), (2, 10327814), (4, 5163907), (7, 2950804), (14, 1475402), (28, 737701), (241, 85708), (482, 42854), (964, 21427), (1687, 12244), (3061, 6748), (3374, 6122)]