21073990180

素因数分解:

$2^2\times 5^1\times {\mathrm{39857}}^1\times {\mathrm{26437}}^1$

素因数の和:66303

約数の個数: 24

約数和(自身を含む): 44258163768

約数和(自身を除く): 23184173588

約数列:

[1, 2, 4, 5, 10, 20, 26437, 39857, 52874, 79714, 105748, 132185, 159428, 199285, 264370, 398570, 528740, 797140, 1053699509, 2107399018, 4214798036, 5268497545, 10536995090, 21073990180]

約数ペア:

[(1, 21073990180), (2, 10536995090), (4, 5268497545), (5, 4214798036), (10, 2107399018), (20, 1053699509), (26437, 797140), (39857, 528740), (52874, 398570), (79714, 264370), (105748, 199285), (132185, 159428)]