20109313

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{809}}^1$

素因数の和:936

約数の個数: 16

約数和(自身を含む): 23794560

約数和(自身を除く): 3685247

約数列:

[1, 7, 53, 67, 371, 469, 809, 3551, 5663, 24857, 42877, 54203, 300139, 379421, 2872759, 20109313]

約数ペア:

[(1, 20109313), (7, 2872759), (53, 379421), (67, 300139), (371, 54203), (469, 42877), (809, 24857), (3551, 5663)]