19635759

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:133

約数の個数: 72

約数和(自身を含む): 35824880

約数和(自身を除く): 16189121

約数列:

[1, 3, 9, 11, 13, 19, 33, 39, 57, 73, 99, 117, 121, 143, 171, 209, 219, 247, 363, 429, 627, 657, 741, 803, 949, 1089, 1287, 1387, 1573, 1881, 2223, 2299, 2409, 2717, 2847, 4161, 4719, 6897, 7227, 8151, 8541, 8833, 10439, 12483, 14157, 15257, 18031, 20691, 24453, 26499, 29887, 31317, 45771, 54093, 79497, 89661, 93951, 114829, 137313, 162279, 167827, 198341, 268983, 344487, 503481, 595023, 1033461, 1510443, 1785069, 2181751, 6545253, 19635759]

約数ペア:

[(1, 19635759), (3, 6545253), (9, 2181751), (11, 1785069), (13, 1510443), (19, 1033461), (33, 595023), (39, 503481), (57, 344487), (73, 268983), (99, 198341), (117, 167827), (121, 162279), (143, 137313), (171, 114829), (209, 93951), (219, 89661), (247, 79497), (363, 54093), (429, 45771), (627, 31317), (657, 29887), (741, 26499), (803, 24453), (949, 20691), (1089, 18031), (1287, 15257), (1387, 14157), (1573, 12483), (1881, 10439), (2223, 8833), (2299, 8541), (2409, 8151), (2717, 7227), (2847, 6897), (4161, 4719)]