21056588

素因数分解:

$2^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{3779}}^1$

素因数の和:3989

約数の個数: 24

約数和(自身を含む): 42336000

約数和(自身を除く): 21279412

約数列:

[1, 2, 4, 7, 14, 28, 199, 398, 796, 1393, 2786, 3779, 5572, 7558, 15116, 26453, 52906, 105812, 752021, 1504042, 3008084, 5264147, 10528294, 21056588]

約数ペア:

[(1, 21056588), (2, 10528294), (4, 5264147), (7, 3008084), (14, 1504042), (28, 752021), (199, 105812), (398, 52906), (796, 26453), (1393, 15116), (2786, 7558), (3779, 5572)]