21899710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1621}}^1$

素因数の和:1828

約数の個数: 32

約数和(自身を含む): 45312192

約数和(自身を除く): 23412482

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 193, 386, 965, 1351, 1621, 1930, 2702, 3242, 6755, 8105, 11347, 13510, 16210, 22694, 56735, 113470, 312853, 625706, 1564265, 2189971, 3128530, 4379942, 10949855, 21899710]

約数ペア:

[(1, 21899710), (2, 10949855), (5, 4379942), (7, 3128530), (10, 2189971), (14, 1564265), (35, 625706), (70, 312853), (193, 113470), (386, 56735), (965, 22694), (1351, 16210), (1621, 13510), (1930, 11347), (2702, 8105), (3242, 6755)]