18881577

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{863}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 33965568

約数和(自身を除く): 15083991

約数列:

[1, 3, 9, 11, 13, 17, 33, 39, 51, 99, 117, 143, 153, 187, 221, 429, 561, 663, 863, 1287, 1683, 1989, 2431, 2589, 7293, 7767, 9493, 11219, 14671, 21879, 28479, 33657, 44013, 85437, 100971, 123409, 132039, 161381, 190723, 370227, 484143, 572169, 1110681, 1452429, 1716507, 2097953, 6293859, 18881577]

約数ペア:

[(1, 18881577), (3, 6293859), (9, 2097953), (11, 1716507), (13, 1452429), (17, 1110681), (33, 572169), (39, 484143), (51, 370227), (99, 190723), (117, 161381), (143, 132039), (153, 123409), (187, 100971), (221, 85437), (429, 44013), (561, 33657), (663, 28479), (863, 21879), (1287, 14671), (1683, 11219), (1989, 9493), (2431, 7767), (2589, 7293)]