21108686

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{1879}}^1$

素因数の和:2059

約数の個数: 16

約数和(自身を含む): 32689440

約数和(自身を除く): 11580754

約数列:

[1, 2, 41, 82, 137, 274, 1879, 3758, 5617, 11234, 77039, 154078, 257423, 514846, 10554343, 21108686]

約数ペア:

[(1, 21108686), (2, 10554343), (41, 514846), (82, 257423), (137, 154078), (274, 77039), (1879, 11234), (3758, 5617)]