19903037

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{4877}}^1$

素因数の和:4948

約数の個数: 16

約数和(自身を含む): 25287552

約数和(自身を除く): 5384515

約数列:

[1, 7, 11, 53, 77, 371, 583, 4081, 4877, 34139, 53647, 258481, 375529, 1809367, 2843291, 19903037]

約数ペア:

[(1, 19903037), (7, 2843291), (11, 1809367), (53, 375529), (77, 258481), (371, 53647), (583, 34139), (4081, 4877)]