81599216

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{221737}}^1$

素因数の和:221768

約数の個数: 20

約数和(自身を含む): 164973072

約数和(自身を除く): 83373856

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 221737, 443474, 886948, 1773896, 3547792, 5099951, 10199902, 20399804, 40799608, 81599216]

約数ペア:

[(1, 81599216), (2, 40799608), (4, 20399804), (8, 10199902), (16, 5099951), (23, 3547792), (46, 1773896), (92, 886948), (184, 443474), (368, 221737)]