81390849

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{487}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 120165120

約数和(自身を除く): 38774271

約数列:

[1, 3, 17, 29, 51, 87, 113, 339, 487, 493, 1461, 1479, 1921, 3277, 5763, 8279, 9831, 14123, 24837, 42369, 55031, 55709, 165093, 167127, 240091, 720273, 935527, 1595899, 2806581, 4787697, 27130283, 81390849]

約数ペア:

[(1, 81390849), (3, 27130283), (17, 4787697), (29, 2806581), (51, 1595899), (87, 935527), (113, 720273), (339, 240091), (487, 167127), (493, 165093), (1461, 55709), (1479, 55031), (1921, 42369), (3277, 24837), (5763, 14123), (8279, 9831)]