28154217

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{7933}}^1$

素因数の和:7969

約数の個数: 24

約数和(自身を含む): 46461504

約数和(自身を除く): 18307287

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 7933, 23799, 55531, 103129, 166593, 309387, 721903, 1340677, 2165709, 4022031, 9384739, 28154217]

約数ペア:

[(1, 28154217), (3, 9384739), (7, 4022031), (13, 2165709), (21, 1340677), (39, 721903), (91, 309387), (169, 166593), (273, 103129), (507, 55531), (1183, 23799), (3549, 7933)]