21672279

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{11633}}^1$

素因数の和:11668

約数の個数: 20

約数和(自身を含む): 33785136

約数和(自身を除く): 12112857

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 11633, 34899, 104697, 267559, 314091, 802677, 942273, 2408031, 7224093, 21672279]

約数ペア:

[(1, 21672279), (3, 7224093), (9, 2408031), (23, 942273), (27, 802677), (69, 314091), (81, 267559), (207, 104697), (621, 34899), (1863, 11633)]