20520395

素因数分解:

$5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{3389}}^1$

素因数の和:3574

約数の個数: 16

約数和(自身を含む): 28313280

約数和(自身を除く): 7792885

約数列:

[1, 5, 7, 35, 173, 865, 1211, 3389, 6055, 16945, 23723, 118615, 586297, 2931485, 4104079, 20520395]

約数ペア:

[(1, 20520395), (5, 4104079), (7, 2931485), (35, 586297), (173, 118615), (865, 23723), (1211, 16945), (3389, 6055)]