20204205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{997}}^1$

素因数の和:1205

約数の個数: 32

約数和(自身を含む): 37173504

約数和(自身を除く): 16969299

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 193, 579, 965, 997, 1351, 2895, 2991, 4053, 4985, 6755, 6979, 14955, 20265, 20937, 34895, 104685, 192421, 577263, 962105, 1346947, 2886315, 4040841, 6734735, 20204205]

約数ペア:

[(1, 20204205), (3, 6734735), (5, 4040841), (7, 2886315), (15, 1346947), (21, 962105), (35, 577263), (105, 192421), (193, 104685), (579, 34895), (965, 20937), (997, 20265), (1351, 14955), (2895, 6979), (2991, 6755), (4053, 4985)]