211217281

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^2$

素因数の和:385

約数の個数: 24

約数和(自身を含む): 250054560

約数和(自身を除く): 38837279

約数列:

[1, 11, 19, 41, 157, 209, 451, 779, 1727, 2983, 6437, 8569, 24649, 32813, 70807, 122303, 271139, 468331, 1010609, 1345333, 5151641, 11116699, 19201571, 211217281]

約数ペア:

[(1, 211217281), (11, 19201571), (19, 11116699), (41, 5151641), (157, 1345333), (209, 1010609), (451, 468331), (779, 271139), (1727, 122303), (2983, 70807), (6437, 32813), (8569, 24649)]