18907539

素因数分解:

$3^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{2089}}^1$

素因数の和:2530

約数の個数: 16

約数和(自身を含む): 28892160

約数和(自身を除く): 9984621

約数列:

[1, 3, 7, 21, 431, 1293, 2089, 3017, 6267, 9051, 14623, 43869, 900359, 2701077, 6302513, 18907539]

約数ペア:

[(1, 18907539), (3, 6302513), (7, 2701077), (21, 900359), (431, 43869), (1293, 14623), (2089, 9051), (3017, 6267)]