21702411

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{9239}}^1$

素因数の和:9280

約数の個数: 20

約数和(自身を含む): 33541200

約数和(自身を除く): 11838789

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 9239, 27717, 83151, 249453, 267931, 748359, 803793, 2411379, 7234137, 21702411]

約数ペア:

[(1, 21702411), (3, 7234137), (9, 2411379), (27, 803793), (29, 748359), (81, 267931), (87, 249453), (261, 83151), (783, 27717), (2349, 9239)]