21499742

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{22727}}^1$

素因数の和:22783

約数の個数: 16

約数和(自身を含む): 36001152

約数和(自身を除く): 14501410

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 22727, 45454, 249997, 499994, 977261, 1954522, 10749871, 21499742]

約数ペア:

[(1, 21499742), (2, 10749871), (11, 1954522), (22, 977261), (43, 499994), (86, 249997), (473, 45454), (946, 22727)]