19966864

素因数分解:

$2^4\times {\mathrm{199}}^1\times {\mathrm{6271}}^1$

素因数の和:6478

約数の個数: 20

約数和(自身を含む): 38886400

約数和(自身を除く): 18919536

約数列:

[1, 2, 4, 8, 16, 199, 398, 796, 1592, 3184, 6271, 12542, 25084, 50168, 100336, 1247929, 2495858, 4991716, 9983432, 19966864]

約数ペア:

[(1, 19966864), (2, 9983432), (4, 4991716), (8, 2495858), (16, 1247929), (199, 100336), (398, 50168), (796, 25084), (1592, 12542), (3184, 6271)]