81281709

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{531253}}^1$

素因数の和:531276

約数の個数: 12

約数和(自身を含む): 124313436

約数和(自身を除く): 43031727

約数列:

[1, 3, 9, 17, 51, 153, 531253, 1593759, 4781277, 9031301, 27093903, 81281709]

約数ペア:

[(1, 81281709), (3, 27093903), (9, 9031301), (17, 4781277), (51, 1593759), (153, 531253)]