21068488

素因数分解:

$2^3\times 7^1\times {\mathrm{439}}^1\times {\mathrm{857}}^1$

素因数の和:1309

約数の個数: 32

約数和(自身を含む): 45302400

約数和(自身を除く): 24233912

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 439, 857, 878, 1714, 1756, 3073, 3428, 3512, 5999, 6146, 6856, 11998, 12292, 23996, 24584, 47992, 376223, 752446, 1504892, 2633561, 3009784, 5267122, 10534244, 21068488]

約数ペア:

[(1, 21068488), (2, 10534244), (4, 5267122), (7, 3009784), (8, 2633561), (14, 1504892), (28, 752446), (56, 376223), (439, 47992), (857, 24584), (878, 23996), (1714, 12292), (1756, 11998), (3073, 6856), (3428, 6146), (3512, 5999)]