19519623

素因数分解:

$3^4\times {\mathrm{137}}^1\times {\mathrm{1759}}^1$

素因数の和:1908

約数の個数: 20

約数和(自身を含む): 29388480

約数和(自身を除く): 9868857

約数列:

[1, 3, 9, 27, 81, 137, 411, 1233, 1759, 3699, 5277, 11097, 15831, 47493, 142479, 240983, 722949, 2168847, 6506541, 19519623]

約数ペア:

[(1, 19519623), (3, 6506541), (9, 2168847), (27, 722949), (81, 240983), (137, 142479), (411, 47493), (1233, 15831), (1759, 11097), (3699, 5277)]