21809256

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3019}}^1$

素因数の和:3078

約数の個数: 64

約数和(自身を含む): 63782400

約数和(自身を除く): 41973144

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 43, 56, 84, 86, 129, 168, 172, 258, 301, 344, 516, 602, 903, 1032, 1204, 1806, 2408, 3019, 3612, 6038, 7224, 9057, 12076, 18114, 21133, 24152, 36228, 42266, 63399, 72456, 84532, 126798, 129817, 169064, 253596, 259634, 389451, 507192, 519268, 778902, 908719, 1038536, 1557804, 1817438, 2726157, 3115608, 3634876, 5452314, 7269752, 10904628, 21809256]

約数ペア:

[(1, 21809256), (2, 10904628), (3, 7269752), (4, 5452314), (6, 3634876), (7, 3115608), (8, 2726157), (12, 1817438), (14, 1557804), (21, 1038536), (24, 908719), (28, 778902), (42, 519268), (43, 507192), (56, 389451), (84, 259634), (86, 253596), (129, 169064), (168, 129817), (172, 126798), (258, 84532), (301, 72456), (344, 63399), (516, 42266), (602, 36228), (903, 24152), (1032, 21133), (1204, 18114), (1806, 12076), (2408, 9057), (3019, 7224), (3612, 6038)]