16489820

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1693}}^1$

素因数の和:2189

約数の個数: 24

約数和(自身を含む): 34720224

約数和(自身を除く): 18230404

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1693, 1948, 2435, 3386, 4870, 6772, 8465, 9740, 16930, 33860, 824491, 1648982, 3297964, 4122455, 8244910, 16489820]

約数ペア:

[(1, 16489820), (2, 8244910), (4, 4122455), (5, 3297964), (10, 1648982), (20, 824491), (487, 33860), (974, 16930), (1693, 9740), (1948, 8465), (2435, 6772), (3386, 4870)]