20522905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4447}}^1$

素因数の和:4536

約数の個数: 16

約数和(自身を含む): 26901504

約数和(自身を除く): 6378599

約数列:

[1, 5, 13, 65, 71, 355, 923, 4447, 4615, 22235, 57811, 289055, 315737, 1578685, 4104581, 20522905]

約数ペア:

[(1, 20522905), (5, 4104581), (13, 1578685), (65, 315737), (71, 289055), (355, 57811), (923, 22235), (4447, 4615)]