19380784

素因数分解:

$2^4\times {\mathrm{541}}^1\times {\mathrm{2239}}^1$

素因数の和:2788

約数の個数: 20

約数和(自身を含む): 37636480

約数和(自身を除く): 18255696

約数列:

[1, 2, 4, 8, 16, 541, 1082, 2164, 2239, 4328, 4478, 8656, 8956, 17912, 35824, 1211299, 2422598, 4845196, 9690392, 19380784]

約数ペア:

[(1, 19380784), (2, 9690392), (4, 4845196), (8, 2422598), (16, 1211299), (541, 35824), (1082, 17912), (2164, 8956), (2239, 8656), (4328, 4478)]