21809156621

素因数分解:

$7^3\times {\mathrm{929}}^1\times {\mathrm{68443}}^1$

素因数の和:69393

約数の個数: 16

約数和(自身を含む): 25461168000

約数和(自身を除く): 3652011379

約数列:

[1, 7, 49, 343, 929, 6503, 45521, 68443, 318647, 479101, 3353707, 23475949, 63583547, 445084829, 3115593803, 21809156621]

約数ペア:

[(1, 21809156621), (7, 3115593803), (49, 445084829), (343, 63583547), (929, 23475949), (6503, 3353707), (45521, 479101), (68443, 318647)]