18421557

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4691}}^1$

素因数の和:4729

約数の個数: 32

約数和(自身を含む): 32431104

約数和(自身を除く): 14009547

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309, 3927, 4691, 14073, 32837, 51601, 79747, 98511, 154803, 239241, 361207, 558229, 877217, 1083621, 1674687, 2631651, 6140519, 18421557]

約数ペア:

[(1, 18421557), (3, 6140519), (7, 2631651), (11, 1674687), (17, 1083621), (21, 877217), (33, 558229), (51, 361207), (77, 239241), (119, 154803), (187, 98511), (231, 79747), (357, 51601), (561, 32837), (1309, 14073), (3927, 4691)]