21408044

素因数分解:

$2^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{4003}}^1$

素因数の和:4205

約数の個数: 24

約数和(自身を含む): 43051008

約数和(自身を除く): 21642964

約数列:

[1, 2, 4, 7, 14, 28, 191, 382, 764, 1337, 2674, 4003, 5348, 8006, 16012, 28021, 56042, 112084, 764573, 1529146, 3058292, 5352011, 10704022, 21408044]

約数ペア:

[(1, 21408044), (2, 10704022), (4, 5352011), (7, 3058292), (14, 1529146), (28, 764573), (191, 112084), (382, 56042), (764, 28021), (1337, 16012), (2674, 8006), (4003, 5348)]