21140273

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{2269}}^1$

素因数の和:2309

約数の個数: 16

約数和(自身を含む): 26586240

約数和(自身を除く): 5445967

約数列:

[1, 7, 11, 77, 121, 847, 1331, 2269, 9317, 15883, 24959, 174713, 274549, 1921843, 3020039, 21140273]

約数ペア:

[(1, 21140273), (7, 3020039), (11, 1921843), (77, 274549), (121, 174713), (847, 24959), (1331, 15883), (2269, 9317)]