20956292

素因数分解:

$2^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{3761}}^1$

素因数の和:3971

約数の個数: 24

約数和(自身を含む): 42134400

約数和(自身を除く): 21178108

約数列:

[1, 2, 4, 7, 14, 28, 199, 398, 796, 1393, 2786, 3761, 5572, 7522, 15044, 26327, 52654, 105308, 748439, 1496878, 2993756, 5239073, 10478146, 20956292]

約数ペア:

[(1, 20956292), (2, 10478146), (4, 5239073), (7, 2993756), (14, 1496878), (28, 748439), (199, 105308), (398, 52654), (796, 26327), (1393, 15044), (2786, 7522), (3761, 5572)]