19509919

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:271

約数の個数: 24

約数和(自身を含む): 23535680

約数和(自身を除く): 4025761

約数列:

[1, 11, 13, 79, 121, 143, 157, 869, 1027, 1573, 1727, 2041, 9559, 11297, 12403, 18997, 22451, 124267, 136433, 161239, 246961, 1500763, 1773629, 19509919]

約数ペア:

[(1, 19509919), (11, 1773629), (13, 1500763), (79, 246961), (121, 161239), (143, 136433), (157, 124267), (869, 22451), (1027, 18997), (1573, 12403), (1727, 11297), (2041, 9559)]