21000884812

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{1811}}^1\times {\mathrm{26597}}^1$

素因数の和:28521

約数の個数: 24

約数和(自身を含む): 37110593520

約数和(自身を除く): 16109708708

約数列:

[1, 2, 4, 109, 218, 436, 1811, 3622, 7244, 26597, 53194, 106388, 197399, 394798, 789596, 2899073, 5798146, 11596292, 48167167, 96334334, 192668668, 5250221203, 10500442406, 21000884812]

約数ペア:

[(1, 21000884812), (2, 10500442406), (4, 5250221203), (109, 192668668), (218, 96334334), (436, 48167167), (1811, 11596292), (3622, 5798146), (7244, 2899073), (26597, 789596), (53194, 394798), (106388, 197399)]