19860003

素因数分解:

$3^2\times {\mathrm{227}}^1\times {\mathrm{9721}}^1$

素因数の和:9954

約数の個数: 12

約数和(自身を含む): 28816008

約数和(自身を除く): 8956005

約数列:

[1, 3, 9, 227, 681, 2043, 9721, 29163, 87489, 2206667, 6620001, 19860003]

約数ペア:

[(1, 19860003), (3, 6620001), (9, 2206667), (227, 87489), (681, 29163), (2043, 9721)]