131431491

素因数分解:

$3^4\times {\mathrm{613}}^1\times {\mathrm{2647}}^1$

素因数の和:3272

約数の個数: 20

約数和(自身を含む): 196730512

約数和(自身を除く): 65299021

約数列:

[1, 3, 9, 27, 81, 613, 1839, 2647, 5517, 7941, 16551, 23823, 49653, 71469, 214407, 1622611, 4867833, 14603499, 43810497, 131431491]

約数ペア:

[(1, 131431491), (3, 43810497), (9, 14603499), (27, 4867833), (81, 1622611), (613, 214407), (1839, 71469), (2647, 49653), (5517, 23823), (7941, 16551)]