20871004

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67763}}^1$

素因数の和:67785

約数の個数: 24

約数和(自身を含む): 45537408

約数和(自身を除く): 24666404

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 67763, 135526, 271052, 474341, 745393, 948682, 1490786, 1897364, 2981572, 5217751, 10435502, 20871004]

約数ペア:

[(1, 20871004), (2, 10435502), (4, 5217751), (7, 2981572), (11, 1897364), (14, 1490786), (22, 948682), (28, 745393), (44, 474341), (77, 271052), (154, 135526), (308, 67763)]