28258263

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 47698560

約数和(自身を除く): 19440297

約数列:

[1, 3, 9, 11, 19, 33, 57, 83, 99, 171, 181, 209, 249, 543, 627, 747, 913, 1577, 1629, 1881, 1991, 2739, 3439, 4731, 5973, 8217, 10317, 14193, 15023, 17347, 17919, 30951, 37829, 45069, 52041, 113487, 135207, 156123, 165253, 285437, 340461, 495759, 856311, 1487277, 2568933, 3139807, 9419421, 28258263]

約数ペア:

[(1, 28258263), (3, 9419421), (9, 3139807), (11, 2568933), (19, 1487277), (33, 856311), (57, 495759), (83, 340461), (99, 285437), (171, 165253), (181, 156123), (209, 135207), (249, 113487), (543, 52041), (627, 45069), (747, 37829), (913, 30951), (1577, 17919), (1629, 17347), (1881, 15023), (1991, 14193), (2739, 10317), (3439, 8217), (4731, 5973)]