18280971

素因数分解:

$3^4\times {\mathrm{269}}^1\times {\mathrm{839}}^1$

素因数の和:1120

約数の個数: 20

約数和(自身を含む): 27442800

約数和(自身を除く): 9161829

約数列:

[1, 3, 9, 27, 81, 269, 807, 839, 2421, 2517, 7263, 7551, 21789, 22653, 67959, 225691, 677073, 2031219, 6093657, 18280971]

約数ペア:

[(1, 18280971), (3, 6093657), (9, 2031219), (27, 677073), (81, 225691), (269, 67959), (807, 22653), (839, 21789), (2421, 7551), (2517, 7263)]