19936445

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{631}}^1$

素因数の和:796

約数の個数: 16

約数和(自身を含む): 24572160

約数和(自身を除く): 4635715

約数列:

[1, 5, 71, 89, 355, 445, 631, 3155, 6319, 31595, 44801, 56159, 224005, 280795, 3987289, 19936445]

約数ペア:

[(1, 19936445), (5, 3987289), (71, 280795), (89, 224005), (355, 56159), (445, 44801), (631, 31595), (3155, 6319)]