21129577

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{2011}}^1$

素因数の和:2116

約数の個数: 16

約数和(自身を含む): 25753600

約数和(自身を除く): 4624023

約数列:

[1, 7, 19, 79, 133, 553, 1501, 2011, 10507, 14077, 38209, 158869, 267463, 1112083, 3018511, 21129577]

約数ペア:

[(1, 21129577), (7, 3018511), (19, 1112083), (79, 267463), (133, 158869), (553, 38209), (1501, 14077), (2011, 10507)]