21710570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1607}}^1$

素因数の和:1814

約数の個数: 32

約数和(自身を含む): 44921088

約数和(自身を除く): 23210518

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 193, 386, 965, 1351, 1607, 1930, 2702, 3214, 6755, 8035, 11249, 13510, 16070, 22498, 56245, 112490, 310151, 620302, 1550755, 2171057, 3101510, 4342114, 10855285, 21710570]

約数ペア:

[(1, 21710570), (2, 10855285), (5, 4342114), (7, 3101510), (10, 2171057), (14, 1550755), (35, 620302), (70, 310151), (193, 112490), (386, 56245), (965, 22498), (1351, 16070), (1607, 13510), (1930, 11249), (2702, 8035), (3214, 6755)]