81735381

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:355

約数の個数: 72

約数和(自身を含む): 151252920

約数和(自身を除く): 69517539

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 53, 63, 91, 117, 147, 159, 269, 273, 371, 441, 477, 637, 689, 807, 819, 1113, 1883, 1911, 2067, 2421, 2597, 3339, 3497, 4823, 5649, 5733, 6201, 7791, 10491, 13181, 14257, 14469, 16947, 23373, 24479, 31473, 33761, 39543, 42771, 43407, 73437, 99799, 101283, 118629, 128313, 171353, 185341, 220311, 299397, 303849, 514059, 556023, 698593, 898191, 1297387, 1542177, 1668069, 2095779, 3892161, 6287337, 9081709, 11676483, 27245127, 81735381]

約数ペア:

[(1, 81735381), (3, 27245127), (7, 11676483), (9, 9081709), (13, 6287337), (21, 3892161), (39, 2095779), (49, 1668069), (53, 1542177), (63, 1297387), (91, 898191), (117, 698593), (147, 556023), (159, 514059), (269, 303849), (273, 299397), (371, 220311), (441, 185341), (477, 171353), (637, 128313), (689, 118629), (807, 101283), (819, 99799), (1113, 73437), (1883, 43407), (1911, 42771), (2067, 39543), (2421, 33761), (2597, 31473), (3339, 24479), (3497, 23373), (4823, 16947), (5649, 14469), (5733, 14257), (6201, 13181), (7791, 10491)]