28188126722

素因数分解:

$2^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{10117777}}^1$

素因数の和:10117985

約数の個数: 16

約数和(自身を含む): 48565334400

約数和(自身を除く): 20377207678

約数列:

[1, 2, 7, 14, 199, 398, 1393, 2786, 10117777, 20235554, 70824439, 141648878, 2013437623, 4026875246, 14094063361, 28188126722]

約数ペア:

[(1, 28188126722), (2, 14094063361), (7, 4026875246), (14, 2013437623), (199, 141648878), (398, 70824439), (1393, 20235554), (2786, 10117777)]