81486081

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{9767}}^1$

素因数の和:9882

約数の個数: 20

約数和(自身を含む): 122920512

約数和(自身を除く): 41434431

約数列:

[1, 3, 9, 27, 81, 103, 309, 927, 2781, 8343, 9767, 29301, 87903, 263709, 791127, 1006001, 3018003, 9054009, 27162027, 81486081]

約数ペア:

[(1, 81486081), (3, 27162027), (9, 9054009), (27, 3018003), (81, 1006001), (103, 791127), (309, 263709), (927, 87903), (2781, 29301), (8343, 9767)]