20198781

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{20219}}^1$

素因数の和:20265

約数の個数: 16

約数和(自身を含む): 30734400

約数和(自身を除く): 10535619

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 20219, 60657, 181971, 545913, 748103, 2244309, 6732927, 20198781]

約数ペア:

[(1, 20198781), (3, 6732927), (9, 2244309), (27, 748103), (37, 545913), (111, 181971), (333, 60657), (999, 20219)]