81930177

素因数分解:

$3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 144883200

約数和(自身を除く): 62953023

約数列:

[1, 3, 7, 9, 21, 27, 41, 63, 97, 109, 123, 189, 287, 291, 327, 369, 679, 763, 861, 873, 981, 1107, 2037, 2289, 2583, 2619, 2943, 3977, 4469, 6111, 6867, 7749, 10573, 11931, 13407, 18333, 20601, 27839, 31283, 31719, 35793, 40221, 74011, 83517, 93849, 95157, 107379, 120663, 222033, 250551, 281547, 285471, 433493, 666099, 751653, 844641, 1300479, 1998297, 3034451, 3901437, 9103353, 11704311, 27310059, 81930177]

約数ペア:

[(1, 81930177), (3, 27310059), (7, 11704311), (9, 9103353), (21, 3901437), (27, 3034451), (41, 1998297), (63, 1300479), (97, 844641), (109, 751653), (123, 666099), (189, 433493), (287, 285471), (291, 281547), (327, 250551), (369, 222033), (679, 120663), (763, 107379), (861, 95157), (873, 93849), (981, 83517), (1107, 74011), (2037, 40221), (2289, 35793), (2583, 31719), (2619, 31283), (2943, 27839), (3977, 20601), (4469, 18333), (6111, 13407), (6867, 11931), (7749, 10573)]