195428781

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{27109}}^1$

素因数の和:27210

約数の個数: 20

約数和(自身を含む): 295227900

約数和(自身を除く): 99799119

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 7209, 27109, 81327, 243981, 731943, 2195829, 2412701, 7238103, 21714309, 65142927, 195428781]

約数ペア:

[(1, 195428781), (3, 65142927), (9, 21714309), (27, 7238103), (81, 2412701), (89, 2195829), (267, 731943), (801, 243981), (2403, 81327), (7209, 27109)]