21129124788

素因数分解:

$2^2\times 3^2\times {\mathrm{139}}^1\times {\mathrm{311}}^1\times {\mathrm{13577}}^1$

素因数の和:14037

約数の個数: 72

約数和(自身を含む): 53970920640

約数和(自身を除く): 32841795852

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 139, 278, 311, 417, 556, 622, 834, 933, 1244, 1251, 1668, 1866, 2502, 2799, 3732, 5004, 5598, 11196, 13577, 27154, 40731, 43229, 54308, 81462, 86458, 122193, 129687, 162924, 172916, 244386, 259374, 389061, 488772, 518748, 778122, 1556244, 1887203, 3774406, 4222447, 5661609, 7548812, 8444894, 11323218, 12667341, 16889788, 16984827, 22646436, 25334682, 33969654, 38002023, 50669364, 67939308, 76004046, 152008092, 586920133, 1173840266, 1760760399, 2347680532, 3521520798, 5282281197, 7043041596, 10564562394, 21129124788]

約数ペア:

[(1, 21129124788), (2, 10564562394), (3, 7043041596), (4, 5282281197), (6, 3521520798), (9, 2347680532), (12, 1760760399), (18, 1173840266), (36, 586920133), (139, 152008092), (278, 76004046), (311, 67939308), (417, 50669364), (556, 38002023), (622, 33969654), (834, 25334682), (933, 22646436), (1244, 16984827), (1251, 16889788), (1668, 12667341), (1866, 11323218), (2502, 8444894), (2799, 7548812), (3732, 5661609), (5004, 4222447), (5598, 3774406), (11196, 1887203), (13577, 1556244), (27154, 778122), (40731, 518748), (43229, 488772), (54308, 389061), (81462, 259374), (86458, 244386), (122193, 172916), (129687, 162924)]