13280729

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{7499}}^1$

素因数の和:7540

約数の個数: 16

約数和(自身を含む): 17280000

約数和(自身を除く): 3999271

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 7499, 52493, 82489, 172477, 577423, 1207339, 1897247, 13280729]

約数ペア:

[(1, 13280729), (7, 1897247), (11, 1207339), (23, 577423), (77, 172477), (161, 82489), (253, 52493), (1771, 7499)]