20691369

素因数分解:

$3^4\times {\mathrm{467}}^1\times {\mathrm{547}}^1$

素因数の和:1026

約数の個数: 20

約数和(自身を含む): 31032144

約数和(自身を除く): 10340775

約数列:

[1, 3, 9, 27, 81, 467, 547, 1401, 1641, 4203, 4923, 12609, 14769, 37827, 44307, 255449, 766347, 2299041, 6897123, 20691369]

約数ペア:

[(1, 20691369), (3, 6897123), (9, 2299041), (27, 766347), (81, 255449), (467, 44307), (547, 37827), (1401, 14769), (1641, 12609), (4203, 4923)]