21842315

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{457}}^1$

素因数の和:563

約数の個数: 24

約数和(自身を含む): 29238720

約数和(自身を除く): 7396405

約数列:

[1, 5, 11, 55, 79, 121, 395, 457, 605, 869, 2285, 4345, 5027, 9559, 25135, 36103, 47795, 55297, 180515, 276485, 397133, 1985665, 4368463, 21842315]

約数ペア:

[(1, 21842315), (5, 4368463), (11, 1985665), (55, 397133), (79, 276485), (121, 180515), (395, 55297), (457, 47795), (605, 36103), (869, 25135), (2285, 9559), (4345, 5027)]