9905885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{463}}^1$

素因数の和:868

約数の個数: 16

約数和(自身を含む): 13029120

約数和(自身を除く): 3123235

約数列:

[1, 5, 11, 55, 389, 463, 1945, 2315, 4279, 5093, 21395, 25465, 180107, 900535, 1981177, 9905885]

約数ペア:

[(1, 9905885), (5, 1981177), (11, 900535), (55, 180107), (389, 25465), (463, 21395), (1945, 5093), (2315, 4279)]