20731645

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{5309}}^1$

素因数の和:5396

約数の個数: 16

約数和(自身を含む): 27527040

約数和(自身を除く): 6795395

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 5309, 26545, 58399, 291995, 376939, 1884695, 4146329, 20731645]

約数ペア:

[(1, 20731645), (5, 4146329), (11, 1884695), (55, 376939), (71, 291995), (355, 58399), (781, 26545), (3905, 5309)]