20441965

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{647}}^1$

素因数の和:812

約数の個数: 16

約数和(自身を含む): 25194240

約数和(自身を除く): 4752275

約数列:

[1, 5, 71, 89, 355, 445, 647, 3235, 6319, 31595, 45937, 57583, 229685, 287915, 4088393, 20441965]

約数ペア:

[(1, 20441965), (5, 4088393), (71, 287915), (89, 229685), (355, 57583), (445, 45937), (647, 31595), (3235, 6319)]