20505199

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7547}}^1$

素因数の和:7590

約数の個数: 16

約数和(自身を含む): 25361280

約数和(自身を除く): 4856081

約数列:

[1, 11, 13, 19, 143, 209, 247, 2717, 7547, 83017, 98111, 143393, 1079221, 1577323, 1864109, 20505199]

約数ペア:

[(1, 20505199), (11, 1864109), (13, 1577323), (19, 1079221), (143, 143393), (209, 98111), (247, 83017), (2717, 7547)]