20913669

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{11447}}^1$

素因数の和:11489

約数の個数: 24

約数和(自身を含む): 35717760

約数和(自身を除く): 14804091

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 11447, 34341, 80129, 103023, 240387, 331963, 721161, 995889, 2323741, 2987667, 6971223, 20913669]

約数ペア:

[(1, 20913669), (3, 6971223), (7, 2987667), (9, 2323741), (21, 995889), (29, 721161), (63, 331963), (87, 240387), (203, 103023), (261, 80129), (609, 34341), (1827, 11447)]