9920085678

素因数分解:

$2^1\times 3^2\times {\mathrm{551115871}}^1$

素因数の和:551115879

約数の個数: 12

約数和(自身を含む): 21493519008

約数和(自身を除く): 11573433330

約数列:

[1, 2, 3, 6, 9, 18, 551115871, 1102231742, 1653347613, 3306695226, 4960042839, 9920085678]

約数ペア:

[(1, 9920085678), (2, 4960042839), (3, 3306695226), (6, 1653347613), (9, 1102231742), (18, 551115871)]