20712016

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{99577}}^1$

素因数の和:99598

約数の個数: 20

約数和(自身を含む): 43216852

約数和(自身を除く): 22504836

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 99577, 199154, 398308, 796616, 1294501, 1593232, 2589002, 5178004, 10356008, 20712016]

約数ペア:

[(1, 20712016), (2, 10356008), (4, 5178004), (8, 2589002), (13, 1593232), (16, 1294501), (26, 796616), (52, 398308), (104, 199154), (208, 99577)]