21081093

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{15581}}^1$

素因数の和:15636

約数の個数: 16

約数和(自身を含む): 31413312

約数和(自身を除く): 10332219

約数列:

[1, 3, 11, 33, 41, 123, 451, 1353, 15581, 46743, 171391, 514173, 638821, 1916463, 7027031, 21081093]

約数ペア:

[(1, 21081093), (3, 7027031), (11, 1916463), (33, 638821), (41, 514173), (123, 171391), (451, 46743), (1353, 15581)]