20512849

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2963}}^1$

素因数の和:3036

約数の個数: 16

約数和(自身を含む): 25039872

約数和(自身を除く): 4527023

約数列:

[1, 7, 23, 43, 161, 301, 989, 2963, 6923, 20741, 68149, 127409, 477043, 891863, 2930407, 20512849]

約数ペア:

[(1, 20512849), (7, 2930407), (23, 891863), (43, 477043), (161, 127409), (301, 68149), (989, 20741), (2963, 6923)]