8540021

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:344

約数の個数: 16

約数和(自身を含む): 10053120

約数和(自身を除く): 1513099

約数列:

[1, 7, 67, 131, 139, 469, 917, 973, 8777, 9313, 18209, 61439, 65191, 127463, 1220003, 8540021]

約数ペア:

[(1, 8540021), (7, 1220003), (67, 127463), (131, 65191), (139, 61439), (469, 18209), (917, 9313), (973, 8777)]