18917195

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{8389}}^1$

素因数の和:8446

約数の個数: 16

約数和(自身を含む): 25371360

約数和(自身を除く): 6454165

約数列:

[1, 5, 11, 41, 55, 205, 451, 2255, 8389, 41945, 92279, 343949, 461395, 1719745, 3783439, 18917195]

約数ペア:

[(1, 18917195), (5, 3783439), (11, 1719745), (41, 461395), (55, 343949), (205, 92279), (451, 41945), (2255, 8389)]