20398448

素因数分解:

$2^4\times 7^1\times {\mathrm{182129}}^1$

素因数の和:182144

約数の個数: 20

約数和(自身を含む): 45168240

約数和(自身を除く): 24769792

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 182129, 364258, 728516, 1274903, 1457032, 2549806, 2914064, 5099612, 10199224, 20398448]

約数ペア:

[(1, 20398448), (2, 10199224), (4, 5099612), (7, 2914064), (8, 2549806), (14, 1457032), (16, 1274903), (28, 728516), (56, 364258), (112, 182129)]