21286736

素因数分解:

$2^4\times {\mathrm{149}}^1\times {\mathrm{8929}}^1$

素因数の和:9086

約数の個数: 20

約数和(自身を含む): 41524500

約数和(自身を除く): 20237764

約数列:

[1, 2, 4, 8, 16, 149, 298, 596, 1192, 2384, 8929, 17858, 35716, 71432, 142864, 1330421, 2660842, 5321684, 10643368, 21286736]

約数ペア:

[(1, 21286736), (2, 10643368), (4, 5321684), (8, 2660842), (16, 1330421), (149, 142864), (298, 71432), (596, 35716), (1192, 17858), (2384, 8929)]