81295155

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{42013}}^1$

素因数の和:42067

約数の個数: 24

約数和(自身を含む): 144192048

約数和(自身を除く): 62896893

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 42013, 126039, 210065, 378117, 630195, 1806559, 1890585, 5419677, 9032795, 16259031, 27098385, 81295155]

約数ペア:

[(1, 81295155), (3, 27098385), (5, 16259031), (9, 9032795), (15, 5419677), (43, 1890585), (45, 1806559), (129, 630195), (215, 378117), (387, 210065), (645, 126039), (1935, 42013)]