21648429

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{677}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 38076480

約数和(自身を除く): 16428051

約数列:

[1, 3, 9, 11, 17, 19, 33, 51, 57, 99, 153, 171, 187, 209, 323, 561, 627, 677, 969, 1683, 1881, 2031, 2907, 3553, 6093, 7447, 10659, 11509, 12863, 22341, 31977, 34527, 38589, 67023, 103581, 115767, 126599, 141493, 218671, 379797, 424479, 656013, 1139391, 1273437, 1968039, 2405381, 7216143, 21648429]

約数ペア:

[(1, 21648429), (3, 7216143), (9, 2405381), (11, 1968039), (17, 1273437), (19, 1139391), (33, 656013), (51, 424479), (57, 379797), (99, 218671), (153, 141493), (171, 126599), (187, 115767), (209, 103581), (323, 67023), (561, 38589), (627, 34527), (677, 31977), (969, 22341), (1683, 12863), (1881, 11509), (2031, 10659), (2907, 7447), (3553, 6093)]