13211121

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{57191}}^1$

素因数の和:57212

約数の個数: 16

約数和(自身を含む): 21961728

約数和(自身を除く): 8750607

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 57191, 171573, 400337, 629101, 1201011, 1887303, 4403707, 13211121]

約数ペア:

[(1, 13211121), (3, 4403707), (7, 1887303), (11, 1201011), (21, 629101), (33, 400337), (77, 171573), (231, 57191)]