17980823021

素因数分解:

$7^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{141067}}^1$

素因数の和:141344

約数の個数: 16

約数和(自身を含む): 20855493120

約数和(自身を除く): 2874670099

約数列:

[1, 7, 131, 139, 917, 973, 18209, 127463, 141067, 987469, 18479777, 19608313, 129358439, 137258191, 2568689003, 17980823021]

約数ペア:

[(1, 17980823021), (7, 2568689003), (131, 137258191), (139, 129358439), (917, 19608313), (973, 18479777), (18209, 987469), (127463, 141067)]