18661951

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{2003}}^1$

素因数の和:2043

約数の個数: 16

約数和(自身を含む): 23470848

約数和(自身を除く): 4808897

約数列:

[1, 7, 11, 77, 121, 847, 1331, 2003, 9317, 14021, 22033, 154231, 242363, 1696541, 2665993, 18661951]

約数ペア:

[(1, 18661951), (7, 2665993), (11, 1696541), (77, 242363), (121, 154231), (847, 22033), (1331, 14021), (2003, 9317)]