19678060

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{2221}}^1$

素因数の和:2673

約数の個数: 24

約数和(自身を含む): 41435856

約数和(自身を除く): 21757796

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2215, 2221, 4430, 4442, 8860, 8884, 11105, 22210, 44420, 983903, 1967806, 3935612, 4919515, 9839030, 19678060]

約数ペア:

[(1, 19678060), (2, 9839030), (4, 4919515), (5, 3935612), (10, 1967806), (20, 983903), (443, 44420), (886, 22210), (1772, 11105), (2215, 8884), (2221, 8860), (4430, 4442)]