20806792

素因数分解:

$2^3\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 19110008

約数列:

[1, 2, 4, 8, 107, 109, 214, 218, 223, 428, 436, 446, 856, 872, 892, 1784, 11663, 23326, 23861, 24307, 46652, 47722, 48614, 93304, 95444, 97228, 190888, 194456, 2600849, 5201698, 10403396, 20806792]

約数ペア:

[(1, 20806792), (2, 10403396), (4, 5201698), (8, 2600849), (107, 194456), (109, 190888), (214, 97228), (218, 95444), (223, 93304), (428, 48614), (436, 47722), (446, 46652), (856, 24307), (872, 23861), (892, 23326), (1784, 11663)]