20326516

素因数分解:

$2^2\times 7^1\times {\mathrm{643}}^1\times {\mathrm{1129}}^1$

素因数の和:1783

約数の個数: 24

約数和(自身を含む): 40752320

約数和(自身を除く): 20425804

約数列:

[1, 2, 4, 7, 14, 28, 643, 1129, 1286, 2258, 2572, 4501, 4516, 7903, 9002, 15806, 18004, 31612, 725947, 1451894, 2903788, 5081629, 10163258, 20326516]

約数ペア:

[(1, 20326516), (2, 10163258), (4, 5081629), (7, 2903788), (14, 1451894), (28, 725947), (643, 31612), (1129, 18004), (1286, 15806), (2258, 9002), (2572, 7903), (4501, 4516)]