172887

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1$

素因数の和:71

約数の個数: 24

約数和(自身を含む): 281088

約数和(自身を除く): 108201

約数列:

[1, 3, 11, 13, 31, 33, 39, 93, 143, 169, 341, 403, 429, 507, 1023, 1209, 1859, 4433, 5239, 5577, 13299, 15717, 57629, 172887]

約数ペア:

[(1, 172887), (3, 57629), (11, 15717), (13, 13299), (31, 5577), (33, 5239), (39, 4433), (93, 1859), (143, 1209), (169, 1023), (341, 507), (403, 429)]