20789415

素因数分解:

$3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1933}}^1$

素因数の和:2183

約数の個数: 24

約数和(自身を含む): 36204480

約数和(自身を除く): 15415065

約数列:

[1, 3, 5, 9, 15, 45, 239, 717, 1195, 1933, 2151, 3585, 5799, 9665, 10755, 17397, 28995, 86985, 461987, 1385961, 2309935, 4157883, 6929805, 20789415]

約数ペア:

[(1, 20789415), (3, 6929805), (5, 4157883), (9, 2309935), (15, 1385961), (45, 461987), (239, 86985), (717, 28995), (1195, 17397), (1933, 10755), (2151, 9665), (3585, 5799)]