19813079

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{397}}^1$

素因数の和:770

約数の個数: 16

約数和(自身を含む): 23402400

約数和(自身を除く): 3589321

約数列:

[1, 11, 13, 143, 349, 397, 3839, 4367, 4537, 5161, 49907, 56771, 138553, 1524083, 1801189, 19813079]

約数ペア:

[(1, 19813079), (11, 1801189), (13, 1524083), (143, 138553), (349, 56771), (397, 49907), (3839, 5161), (4367, 4537)]