20778417

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1627}}^1$

素因数の和:1690

約数の個数: 32

約数和(自身を含む): 34383360

約数和(自身を除く): 13604943

約数列:

[1, 3, 9, 11, 27, 33, 43, 99, 129, 297, 387, 473, 1161, 1419, 1627, 4257, 4881, 12771, 14643, 17897, 43929, 53691, 69961, 161073, 209883, 483219, 629649, 769571, 1888947, 2308713, 6926139, 20778417]

約数ペア:

[(1, 20778417), (3, 6926139), (9, 2308713), (11, 1888947), (27, 769571), (33, 629649), (43, 483219), (99, 209883), (129, 161073), (297, 69961), (387, 53691), (473, 43929), (1161, 17897), (1419, 14643), (1627, 12771), (4257, 4881)]