21497817

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{15889}}^1$

素因数の和:15944

約数の個数: 16

約数和(自身を含む): 32034240

約数和(自身を除く): 10536423

約数列:

[1, 3, 11, 33, 41, 123, 451, 1353, 15889, 47667, 174779, 524337, 651449, 1954347, 7165939, 21497817]

約数ペア:

[(1, 21497817), (3, 7165939), (11, 1954347), (33, 651449), (41, 524337), (123, 174779), (451, 47667), (1353, 15889)]