28726581

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{1709}}^1$

素因数の和:2156

約数の個数: 16

約数和(自身を含む): 41368320

約数和(自身を除く): 12641739

約数列:

[1, 3, 13, 39, 431, 1293, 1709, 5127, 5603, 16809, 22217, 66651, 736579, 2209737, 9575527, 28726581]

約数ペア:

[(1, 28726581), (3, 9575527), (13, 2209737), (39, 736579), (431, 66651), (1293, 22217), (1709, 16809), (5127, 5603)]