21008031

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{15527}}^1$

素因数の和:15582

約数の個数: 16

約数和(自身を含む): 31304448

約数和(自身を除く): 10296417

約数列:

[1, 3, 11, 33, 41, 123, 451, 1353, 15527, 46581, 170797, 512391, 636607, 1909821, 7002677, 21008031]

約数ペア:

[(1, 21008031), (3, 7002677), (11, 1909821), (33, 636607), (41, 512391), (123, 170797), (451, 46581), (1353, 15527)]