21898459

素因数分解:

${\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{2549}}^1$

素因数の和:2642

約数の個数: 12

約数和(自身を含む): 24418800

約数和(自身を除く): 2520341

約数列:

[1, 11, 71, 121, 781, 2549, 8591, 28039, 180979, 308429, 1990769, 21898459]

約数ペア:

[(1, 21898459), (11, 1990769), (71, 308429), (121, 180979), (781, 28039), (2549, 8591)]