21007767

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37447}}^1$

素因数の和:37478

約数の個数: 16

約数和(自身を含む): 32355072

約数和(自身を除く): 11347305

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 37447, 112341, 411917, 636599, 1235751, 1909797, 7002589, 21007767]

約数ペア:

[(1, 21007767), (3, 7002589), (11, 1909797), (17, 1235751), (33, 636599), (51, 411917), (187, 112341), (561, 37447)]