21885560

素因数分解:

$2^3\times 5^1\times {\mathrm{547139}}^1$

素因数の和:547150

約数の個数: 16

約数和(自身を含む): 49242600

約数和(自身を除く): 27357040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 547139, 1094278, 2188556, 2735695, 4377112, 5471390, 10942780, 21885560]

約数ペア:

[(1, 21885560), (2, 10942780), (4, 5471390), (5, 4377112), (8, 2735695), (10, 2188556), (20, 1094278), (40, 547139)]