16990408

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{111779}}^1$

素因数の和:111804

約数の個数: 16

約数和(自身を含む): 33534000

約数和(自身を除く): 16543592

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 111779, 223558, 447116, 894232, 2123801, 4247602, 8495204, 16990408]

約数ペア:

[(1, 16990408), (2, 8495204), (4, 4247602), (8, 2123801), (19, 894232), (38, 447116), (76, 223558), (152, 111779)]