131489217

素因数分解:

$3^3\times {\mathrm{263}}^1\times {\mathrm{18517}}^1$

素因数の和:18789

約数の個数: 16

約数和(自身を含む): 195550080

約数和(自身を除く): 64060863

約数列:

[1, 3, 9, 27, 263, 789, 2367, 7101, 18517, 55551, 166653, 499959, 4869971, 14609913, 43829739, 131489217]

約数ペア:

[(1, 131489217), (3, 43829739), (9, 14609913), (27, 4869971), (263, 499959), (789, 166653), (2367, 55551), (7101, 18517)]