81567409

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{3691}}^1$

素因数の和:3757

約数の個数: 24

約数和(自身を含む): 106063776

約数和(自身を除く): 24496367

約数列:

[1, 7, 11, 41, 49, 77, 287, 451, 539, 2009, 3157, 3691, 22099, 25837, 40601, 151331, 180859, 284207, 1059317, 1664641, 1989449, 7415219, 11652487, 81567409]

約数ペア:

[(1, 81567409), (7, 11652487), (11, 7415219), (41, 1989449), (49, 1664641), (77, 1059317), (287, 284207), (451, 180859), (539, 151331), (2009, 40601), (3157, 25837), (3691, 22099)]