89985959

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{4021}}^1$

素因数の和:4190

約数の個数: 16

約数和(自身を含む): 108111360

約数和(自身を除く): 18125401

約数列:

[1, 7, 23, 139, 161, 973, 3197, 4021, 22379, 28147, 92483, 558919, 647381, 3912433, 12855137, 89985959]

約数ペア:

[(1, 89985959), (7, 12855137), (23, 3912433), (139, 647381), (161, 558919), (973, 92483), (3197, 28147), (4021, 22379)]