21194640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29437}}^1$

素因数の和:29456

約数の個数: 60

約数和(自身を含む): 71181084

約数和(自身を除く): 49986444

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29437, 58874, 88311, 117748, 147185, 176622, 235496, 264933, 294370, 353244, 441555, 470992, 529866, 588740, 706488, 883110, 1059732, 1177480, 1324665, 1412976, 1766220, 2119464, 2354960, 2649330, 3532440, 4238928, 5298660, 7064880, 10597320, 21194640]

約数ペア:

[(1, 21194640), (2, 10597320), (3, 7064880), (4, 5298660), (5, 4238928), (6, 3532440), (8, 2649330), (9, 2354960), (10, 2119464), (12, 1766220), (15, 1412976), (16, 1324665), (18, 1177480), (20, 1059732), (24, 883110), (30, 706488), (36, 588740), (40, 529866), (45, 470992), (48, 441555), (60, 353244), (72, 294370), (80, 264933), (90, 235496), (120, 176622), (144, 147185), (180, 117748), (240, 88311), (360, 58874), (720, 29437)]