21880516

素因数分解:

$2^2\times 7^1\times {\mathrm{881}}^1\times {\mathrm{887}}^1$

素因数の和:1779

約数の個数: 24

約数和(自身を含む): 43860096

約数和(自身を除く): 21979580

約数列:

[1, 2, 4, 7, 14, 28, 881, 887, 1762, 1774, 3524, 3548, 6167, 6209, 12334, 12418, 24668, 24836, 781447, 1562894, 3125788, 5470129, 10940258, 21880516]

約数ペア:

[(1, 21880516), (2, 10940258), (4, 5470129), (7, 3125788), (14, 1562894), (28, 781447), (881, 24836), (887, 24668), (1762, 12418), (1774, 12334), (3524, 6209), (3548, 6167)]