28238617

素因数分解:

${\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:285

約数の個数: 24

約数和(自身を含む): 33324480

約数和(自身を除く): 5085863

約数列:

[1, 11, 19, 71, 121, 173, 209, 781, 1349, 1903, 2299, 3287, 8591, 12283, 14839, 20933, 36157, 135113, 163229, 233377, 397727, 1486243, 2567147, 28238617]

約数ペア:

[(1, 28238617), (11, 2567147), (19, 1486243), (71, 397727), (121, 233377), (173, 163229), (209, 135113), (781, 36157), (1349, 20933), (1903, 14839), (2299, 12283), (3287, 8591)]