21284527

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2647}}^1$

素因数の和:2718

約数の個数: 16

約数和(自身を含む): 25166592

約数和(自身を除く): 3882065

約数列:

[1, 11, 17, 43, 187, 473, 731, 2647, 8041, 29117, 44999, 113821, 494989, 1252031, 1934957, 21284527]

約数ペア:

[(1, 21284527), (11, 1934957), (17, 1252031), (43, 494989), (187, 113821), (473, 44999), (731, 29117), (2647, 8041)]