19248220

素因数分解:

$2^2\times 5^1\times {\mathrm{857}}^1\times {\mathrm{1123}}^1$

素因数の和:1989

約数の個数: 24

約数和(自身を含む): 40504464

約数和(自身を除く): 21256244

約数列:

[1, 2, 4, 5, 10, 20, 857, 1123, 1714, 2246, 3428, 4285, 4492, 5615, 8570, 11230, 17140, 22460, 962411, 1924822, 3849644, 4812055, 9624110, 19248220]

約数ペア:

[(1, 19248220), (2, 9624110), (4, 4812055), (5, 3849644), (10, 1924822), (20, 962411), (857, 22460), (1123, 17140), (1714, 11230), (2246, 8570), (3428, 5615), (4285, 4492)]