20640592

素因数分解:

$2^4\times 7^1\times {\mathrm{184291}}^1$

素因数の和:184306

約数の個数: 20

約数和(自身を含む): 45704416

約数和(自身を除く): 25063824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 184291, 368582, 737164, 1290037, 1474328, 2580074, 2948656, 5160148, 10320296, 20640592]

約数ペア:

[(1, 20640592), (2, 10320296), (4, 5160148), (7, 2948656), (8, 2580074), (14, 1474328), (16, 1290037), (28, 737164), (56, 368582), (112, 184291)]