21138045381

素因数分解:

$3^2\times {\mathrm{179}}^1\times {\mathrm{13121071}}^1$

素因数の和:13121256

約数の個数: 12

約数和(自身を含む): 30703308480

約数和(自身を除く): 9565263099

約数列:

[1, 3, 9, 179, 537, 1611, 13121071, 39363213, 118089639, 2348671709, 7046015127, 21138045381]

約数ペア:

[(1, 21138045381), (3, 7046015127), (9, 2348671709), (179, 118089639), (537, 39363213), (1611, 13121071)]