21000570572

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{1760021}}^1$

素因数の和:1760201

約数の個数: 24

約数和(自身を含む): 38931686640

約数和(自身を除く): 17931116068

約数列:

[1, 2, 4, 19, 38, 76, 157, 314, 628, 2983, 5966, 11932, 1760021, 3520042, 7040084, 33440399, 66880798, 133761596, 276323297, 552646594, 1105293188, 5250142643, 10500285286, 21000570572]

約数ペア:

[(1, 21000570572), (2, 10500285286), (4, 5250142643), (19, 1105293188), (38, 552646594), (76, 276323297), (157, 133761596), (314, 66880798), (628, 33440399), (2983, 7040084), (5966, 3520042), (11932, 1760021)]