18438959

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5569}}^1$

素因数の和:5630

約数の個数: 16

約数和(自身を含む): 23527680

約数和(自身を除く): 5088721

約数列:

[1, 7, 11, 43, 77, 301, 473, 3311, 5569, 38983, 61259, 239467, 428813, 1676269, 2634137, 18438959]

約数ペア:

[(1, 18438959), (7, 2634137), (11, 1676269), (43, 428813), (77, 239467), (301, 61259), (473, 38983), (3311, 5569)]