21324268

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5479}}^1$

素因数の和:5629

約数の個数: 24

約数和(自身を含む): 42963200

約数和(自身を除く): 21638932

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5479, 10958, 21916, 38353, 76706, 153412, 761581, 1523162, 3046324, 5331067, 10662134, 21324268]

約数ペア:

[(1, 21324268), (2, 10662134), (4, 5331067), (7, 3046324), (14, 1523162), (28, 761581), (139, 153412), (278, 76706), (556, 38353), (973, 21916), (1946, 10958), (3892, 5479)]