57720231

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{1531}}^1$

素因数の和:1667

約数の個数: 24

約数和(自身を含む): 86037120

約数和(自身を除く): 28316889

約数列:

[1, 3, 9, 59, 71, 177, 213, 531, 639, 1531, 4189, 4593, 12567, 13779, 37701, 90329, 108701, 270987, 326103, 812961, 978309, 6413359, 19240077, 57720231]

約数ペア:

[(1, 57720231), (3, 19240077), (9, 6413359), (59, 978309), (71, 812961), (177, 326103), (213, 270987), (531, 108701), (639, 90329), (1531, 37701), (4189, 13779), (4593, 12567)]