221870745

素因数分解:

$3^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{2083}}^1$

素因数の和:2363

約数の個数: 40

約数和(自身を含む): 399427776

約数和(自身を除く): 177557031

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 263, 405, 789, 1315, 2083, 2367, 3945, 6249, 7101, 10415, 11835, 18747, 21303, 31245, 35505, 56241, 93735, 106515, 168723, 281205, 547829, 843615, 1643487, 2739145, 4930461, 8217435, 14791383, 24652305, 44374149, 73956915, 221870745]

約数ペア:

[(1, 221870745), (3, 73956915), (5, 44374149), (9, 24652305), (15, 14791383), (27, 8217435), (45, 4930461), (81, 2739145), (135, 1643487), (263, 843615), (405, 547829), (789, 281205), (1315, 168723), (2083, 106515), (2367, 93735), (3945, 56241), (6249, 35505), (7101, 31245), (10415, 21303), (11835, 18747)]