208518266

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{220421}}^1$

素因数の和:220477

約数の個数: 16

約数和(自身を含む): 349148448

約数和(自身を除く): 140630182

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 220421, 440842, 2424631, 4849262, 9478103, 18956206, 104259133, 208518266]

約数ペア:

[(1, 208518266), (2, 104259133), (11, 18956206), (22, 9478103), (43, 4849262), (86, 2424631), (473, 440842), (946, 220421)]