220171259

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{21499}}^1$

素因数の和:21543

約数の個数: 24

約数和(自身を含む): 294120000

約数和(自身を除く): 73948741

約数列:

[1, 7, 11, 19, 49, 77, 133, 209, 539, 931, 1463, 10241, 21499, 150493, 236489, 408481, 1053451, 1655423, 2859367, 4493291, 11587961, 20015569, 31453037, 220171259]

約数ペア:

[(1, 220171259), (7, 31453037), (11, 20015569), (19, 11587961), (49, 4493291), (77, 2859367), (133, 1655423), (209, 1053451), (539, 408481), (931, 236489), (1463, 150493), (10241, 21499)]