18721755

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{32003}}^1$

素因数の和:32027

約数の個数: 24

約数和(自身を含む): 34948368

約数和(自身を除く): 16226613

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 32003, 96009, 160015, 288027, 416039, 480045, 1248117, 1440135, 2080195, 3744351, 6240585, 18721755]

約数ペア:

[(1, 18721755), (3, 6240585), (5, 3744351), (9, 2080195), (13, 1440135), (15, 1248117), (39, 480045), (45, 416039), (65, 288027), (117, 160015), (195, 96009), (585, 32003)]