81298217

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{337}}^1$

素因数の和:609

約数の個数: 32

約数和(自身を含む): 109933824

約数和(自身を除く): 28635607

約数列:

[1, 7, 11, 13, 77, 91, 143, 241, 337, 1001, 1687, 2359, 2651, 3133, 3707, 4381, 18557, 21931, 25949, 30667, 34463, 48191, 81217, 241241, 337337, 568519, 893387, 1055821, 6253709, 7390747, 11614031, 81298217]

約数ペア:

[(1, 81298217), (7, 11614031), (11, 7390747), (13, 6253709), (77, 1055821), (91, 893387), (143, 568519), (241, 337337), (337, 241241), (1001, 81217), (1687, 48191), (2359, 34463), (2651, 30667), (3133, 25949), (3707, 21931), (4381, 18557)]