21572768

素因数分解:

$2^5\times 7^1\times {\mathrm{193}}^1\times {\mathrm{499}}^1$

素因数の和:709

約数の個数: 48

約数和(自身を含む): 48888000

約数和(自身を除く): 27315232

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 193, 224, 386, 499, 772, 998, 1351, 1544, 1996, 2702, 3088, 3493, 3992, 5404, 6176, 6986, 7984, 10808, 13972, 15968, 21616, 27944, 43232, 55888, 96307, 111776, 192614, 385228, 674149, 770456, 1348298, 1540912, 2696596, 3081824, 5393192, 10786384, 21572768]

約数ペア:

[(1, 21572768), (2, 10786384), (4, 5393192), (7, 3081824), (8, 2696596), (14, 1540912), (16, 1348298), (28, 770456), (32, 674149), (56, 385228), (112, 192614), (193, 111776), (224, 96307), (386, 55888), (499, 43232), (772, 27944), (998, 21616), (1351, 15968), (1544, 13972), (1996, 10808), (2702, 7984), (3088, 6986), (3493, 6176), (3992, 5404)]