47921211

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21557}}^1$

素因数の和:21595

約数の個数: 24

約数和(自身を含む): 78471120

約数和(自身を除く): 30549909

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 21557, 64671, 194013, 280241, 409583, 840723, 1228749, 2522169, 3686247, 5324579, 15973737, 47921211]

約数ペア:

[(1, 47921211), (3, 15973737), (9, 5324579), (13, 3686247), (19, 2522169), (39, 1228749), (57, 840723), (117, 409583), (171, 280241), (247, 194013), (741, 64671), (2223, 21557)]