20597787

素因数分解:

$3^3\times 7^2\times {\mathrm{15569}}^1$

素因数の和:15592

約数の個数: 24

約数和(自身を含む): 35499600

約数和(自身を除く): 14901813

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 15569, 46707, 108983, 140121, 326949, 420363, 762881, 980847, 2288643, 2942541, 6865929, 20597787]

約数ペア:

[(1, 20597787), (3, 6865929), (7, 2942541), (9, 2288643), (21, 980847), (27, 762881), (49, 420363), (63, 326949), (147, 140121), (189, 108983), (441, 46707), (1323, 15569)]