20038995

素因数分解:

$3^5\times 5^1\times {\mathrm{16493}}^1$

素因数の和:16513

約数の個数: 24

約数和(自身を含む): 36022896

約数和(自身を除く): 15983901

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 16493, 49479, 82465, 148437, 247395, 445311, 742185, 1335933, 2226555, 4007799, 6679665, 20038995]

約数ペア:

[(1, 20038995), (3, 6679665), (5, 4007799), (9, 2226555), (15, 1335933), (27, 742185), (45, 445311), (81, 247395), (135, 148437), (243, 82465), (405, 49479), (1215, 16493)]