21450177

素因数分解:

$3^4\times 7^1\times {\mathrm{37831}}^1$

素因数の和:37850

約数の個数: 20

約数和(自身を含む): 36621376

約数和(自身を除く): 15171199

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 37831, 113493, 264817, 340479, 794451, 1021437, 2383353, 3064311, 7150059, 21450177]

約数ペア:

[(1, 21450177), (3, 7150059), (7, 3064311), (9, 2383353), (21, 1021437), (27, 794451), (63, 340479), (81, 264817), (189, 113493), (567, 37831)]