991897774

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3728939}}^1$

素因数の和:3728967

約数の個数: 16

約数和(自身を含む): 1789891200

約数和(自身を除く): 797993426

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 3728939, 7457878, 26102573, 52205146, 70849841, 141699682, 495948887, 991897774]

約数ペア:

[(1, 991897774), (2, 495948887), (7, 141699682), (14, 70849841), (19, 52205146), (38, 26102573), (133, 7457878), (266, 3728939)]