21353321

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1439}}^1$

素因数の和:1540

約数の個数: 16

約数和(自身を含む): 24883200

約数和(自身を除く): 3529879

約数列:

[1, 11, 19, 71, 209, 781, 1349, 1439, 14839, 15829, 27341, 102169, 300751, 1123859, 1941211, 21353321]

約数ペア:

[(1, 21353321), (11, 1941211), (19, 1123859), (71, 300751), (209, 102169), (781, 27341), (1349, 15829), (1439, 14839)]