20617465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{223}}^1$

素因数の和:321

約数の個数: 24

約数和(自身を含む): 27788544

約数和(自身を除く): 7171079

約数列:

[1, 5, 11, 41, 55, 205, 223, 451, 1115, 1681, 2255, 2453, 8405, 9143, 12265, 18491, 45715, 92455, 100573, 374863, 502865, 1874315, 4123493, 20617465]

約数ペア:

[(1, 20617465), (5, 4123493), (11, 1874315), (41, 502865), (55, 374863), (205, 100573), (223, 92455), (451, 45715), (1115, 18491), (1681, 12265), (2255, 9143), (2453, 8405)]