2178567

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{491}}^1$

素因数の和:543

約数の個数: 24

約数和(自身を含む): 3453840

約数和(自身を除く): 1275273

約数列:

[1, 3, 9, 17, 29, 51, 87, 153, 261, 491, 493, 1473, 1479, 4419, 4437, 8347, 14239, 25041, 42717, 75123, 128151, 242063, 726189, 2178567]

約数ペア:

[(1, 2178567), (3, 726189), (9, 242063), (17, 128151), (29, 75123), (51, 42717), (87, 25041), (153, 14239), (261, 8347), (491, 4437), (493, 4419), (1473, 1479)]