18389552

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{26729}}^1$

素因数の和:26780

約数の個数: 20

約数和(自身を含む): 36459720

約数和(自身を除く): 18070168

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 26729, 53458, 106916, 213832, 427664, 1149347, 2298694, 4597388, 9194776, 18389552]

約数ペア:

[(1, 18389552), (2, 9194776), (4, 4597388), (8, 2298694), (16, 1149347), (43, 427664), (86, 213832), (172, 106916), (344, 53458), (688, 26729)]