251019621

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{359}}^1$

素因数の和:463

約数の個数: 64

約数和(自身を含む): 414720000

約数和(自身を除く): 163700379

約数列:

[1, 3, 9, 19, 27, 29, 47, 57, 87, 141, 171, 261, 359, 423, 513, 551, 783, 893, 1077, 1269, 1363, 1653, 2679, 3231, 4089, 4959, 6821, 8037, 9693, 10411, 12267, 14877, 16873, 20463, 24111, 25897, 31233, 36801, 50619, 61389, 77691, 93699, 151857, 184167, 197809, 233073, 281097, 320587, 455571, 489317, 593427, 699219, 961761, 1467951, 1780281, 2885283, 4403853, 5340843, 8655849, 9297023, 13211559, 27891069, 83673207, 251019621]

約数ペア:

[(1, 251019621), (3, 83673207), (9, 27891069), (19, 13211559), (27, 9297023), (29, 8655849), (47, 5340843), (57, 4403853), (87, 2885283), (141, 1780281), (171, 1467951), (261, 961761), (359, 699219), (423, 593427), (513, 489317), (551, 455571), (783, 320587), (893, 281097), (1077, 233073), (1269, 197809), (1363, 184167), (1653, 151857), (2679, 93699), (3231, 77691), (4089, 61389), (4959, 50619), (6821, 36801), (8037, 31233), (9693, 25897), (10411, 24111), (12267, 20463), (14877, 16873)]