28217805

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2221}}^1$

素因数の和:2258

約数の個数: 48

約数和(自身を含む): 56740992

約数和(自身を除く): 28523187

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 121, 165, 231, 363, 385, 605, 847, 1155, 1815, 2221, 2541, 4235, 6663, 11105, 12705, 15547, 24431, 33315, 46641, 73293, 77735, 122155, 171017, 233205, 268741, 366465, 513051, 806223, 855085, 1343705, 1881187, 2565255, 4031115, 5643561, 9405935, 28217805]

約数ペア:

[(1, 28217805), (3, 9405935), (5, 5643561), (7, 4031115), (11, 2565255), (15, 1881187), (21, 1343705), (33, 855085), (35, 806223), (55, 513051), (77, 366465), (105, 268741), (121, 233205), (165, 171017), (231, 122155), (363, 77735), (385, 73293), (605, 46641), (847, 33315), (1155, 24431), (1815, 15547), (2221, 12705), (2541, 11105), (4235, 6663)]