20622945

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{997}}^1$

素因数の和:1209

約数の個数: 32

約数和(自身を含む): 37939968

約数和(自身を除く): 17317023

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 197, 591, 985, 997, 1379, 2955, 2991, 4137, 4985, 6895, 6979, 14955, 20685, 20937, 34895, 104685, 196409, 589227, 982045, 1374863, 2946135, 4124589, 6874315, 20622945]

約数ペア:

[(1, 20622945), (3, 6874315), (5, 4124589), (7, 2946135), (15, 1374863), (21, 982045), (35, 589227), (105, 196409), (197, 104685), (591, 34895), (985, 20937), (997, 20685), (1379, 14955), (2955, 6979), (2991, 6895), (4137, 4985)]