21371306

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{7649}}^1$

素因数の和:7789

約数の個数: 16

約数和(自身を含む): 35251200

約数和(自身を除く): 13879894

約数列:

[1, 2, 11, 22, 127, 254, 1397, 2794, 7649, 15298, 84139, 168278, 971423, 1942846, 10685653, 21371306]

約数ペア:

[(1, 21371306), (2, 10685653), (11, 1942846), (22, 971423), (127, 168278), (254, 84139), (1397, 15298), (2794, 7649)]