19820853

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{169409}}^1$

素因数の和:169428

約数の個数: 12

約数和(自身を含む): 30832620

約数和(自身を除く): 11011767

約数列:

[1, 3, 9, 13, 39, 117, 169409, 508227, 1524681, 2202317, 6606951, 19820853]

約数ペア:

[(1, 19820853), (3, 6606951), (9, 2202317), (13, 1524681), (39, 508227), (117, 169409)]