2787291

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{2647}}^1$

素因数の和:2672

約数の個数: 20

約数和(自身を含む): 4485712

約数和(自身を除く): 1698421

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 2647, 7941, 23823, 34411, 71469, 103233, 214407, 309699, 929097, 2787291]

約数ペア:

[(1, 2787291), (3, 929097), (9, 309699), (13, 214407), (27, 103233), (39, 71469), (81, 34411), (117, 23823), (351, 7941), (1053, 2647)]