20168211

素因数分解:

$3^1\times 7^1\times {\mathrm{977}}^1\times {\mathrm{983}}^1$

素因数の和:1970

約数の個数: 16

約数和(自身を含む): 30795264

約数和(自身を除く): 10627053

約数列:

[1, 3, 7, 21, 977, 983, 2931, 2949, 6839, 6881, 20517, 20643, 960391, 2881173, 6722737, 20168211]

約数ペア:

[(1, 20168211), (3, 6722737), (7, 2881173), (21, 960391), (977, 20643), (983, 20517), (2931, 6881), (2949, 6839)]