21455997

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{9181}}^1$

素因数の和:9244

約数の個数: 16

約数和(自身を含む): 30851520

約数和(自身を除く): 9395523

約数列:

[1, 3, 19, 41, 57, 123, 779, 2337, 9181, 27543, 174439, 376421, 523317, 1129263, 7151999, 21455997]

約数ペア:

[(1, 21455997), (3, 7151999), (19, 1129263), (41, 523317), (57, 376421), (123, 174439), (779, 27543), (2337, 9181)]