19358911

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:463

約数の個数: 24

約数和(自身を含む): 23714432

約数和(自身を除く): 4355521

約数列:

[1, 11, 13, 31, 121, 143, 341, 397, 403, 1573, 3751, 4367, 4433, 5161, 12307, 48037, 48763, 56771, 135377, 159991, 624481, 1489147, 1759901, 19358911]

約数ペア:

[(1, 19358911), (11, 1759901), (13, 1489147), (31, 624481), (121, 159991), (143, 135377), (341, 56771), (397, 48763), (403, 48037), (1573, 12307), (3751, 5161), (4367, 4433)]