21813456

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{64921}}^1$

素因数の和:64939

約数の個数: 40

約数和(自身を含む): 64402624

約数和(自身を除く): 42589168

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 64921, 129842, 194763, 259684, 389526, 454447, 519368, 779052, 908894, 1038736, 1363341, 1558104, 1817788, 2726682, 3116208, 3635576, 5453364, 7271152, 10906728, 21813456]

約数ペア:

[(1, 21813456), (2, 10906728), (3, 7271152), (4, 5453364), (6, 3635576), (7, 3116208), (8, 2726682), (12, 1817788), (14, 1558104), (16, 1363341), (21, 1038736), (24, 908894), (28, 779052), (42, 519368), (48, 454447), (56, 389526), (84, 259684), (112, 194763), (168, 129842), (336, 64921)]