21188448721

素因数分解:

${\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{19071511}}^1$

素因数の和:19071623

約数の個数: 8

約数和(自身を含む): 23343530688

約数和(自身を除く): 2155081967

約数列:

[1, 11, 101, 1111, 19071511, 209786621, 1926222611, 21188448721]

約数ペア:

[(1, 21188448721), (11, 1926222611), (101, 209786621), (1111, 19071511)]