20109985

素因数分解:

$5^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{1297}}^1$

素因数の和:1752

約数の個数: 16

約数和(自身を含む): 27662976

約数和(自身を除く): 7552991

約数列:

[1, 5, 7, 35, 443, 1297, 2215, 3101, 6485, 9079, 15505, 45395, 574571, 2872855, 4021997, 20109985]

約数ペア:

[(1, 20109985), (5, 4021997), (7, 2872855), (35, 574571), (443, 45395), (1297, 15505), (2215, 9079), (3101, 6485)]