20215576

素因数分解:

$2^3\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 38808000

約数和(自身を除く): 18592424

約数列:

[1, 2, 4, 8, 97, 109, 194, 218, 239, 388, 436, 478, 776, 872, 956, 1912, 10573, 21146, 23183, 26051, 42292, 46366, 52102, 84584, 92732, 104204, 185464, 208408, 2526947, 5053894, 10107788, 20215576]

約数ペア:

[(1, 20215576), (2, 10107788), (4, 5053894), (8, 2526947), (97, 208408), (109, 185464), (194, 104204), (218, 92732), (239, 84584), (388, 52102), (436, 46366), (478, 42292), (776, 26051), (872, 23183), (956, 21146), (1912, 10573)]