81326889

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{10007}}^1$

素因数の和:10066

約数の個数: 32

約数和(自身を含む): 140912640

約数和(自身を除く): 59585751

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2709, 8127, 10007, 30021, 70049, 90063, 210147, 270189, 430301, 630441, 1290903, 1891323, 3012107, 3872709, 9036321, 11618127, 27108963, 81326889]

約数ペア:

[(1, 81326889), (3, 27108963), (7, 11618127), (9, 9036321), (21, 3872709), (27, 3012107), (43, 1891323), (63, 1290903), (129, 630441), (189, 430301), (301, 270189), (387, 210147), (903, 90063), (1161, 70049), (2709, 30021), (8127, 10007)]