21548781

素因数分解:

$3^3\times {\mathrm{467}}^1\times {\mathrm{1709}}^1$

素因数の和:2185

約数の個数: 16

約数和(自身を含む): 32011200

約数和(自身を除く): 10462419

約数列:

[1, 3, 9, 27, 467, 1401, 1709, 4203, 5127, 12609, 15381, 46143, 798103, 2394309, 7182927, 21548781]

約数ペア:

[(1, 21548781), (3, 7182927), (9, 2394309), (27, 798103), (467, 46143), (1401, 15381), (1709, 12609), (4203, 5127)]