15921927

素因数分解:

$3^4\times 7^1\times {\mathrm{28081}}^1$

素因数の和:28100

約数の個数: 20

約数和(自身を含む): 27183376

約数和(自身を除く): 11261449

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 28081, 84243, 196567, 252729, 589701, 758187, 1769103, 2274561, 5307309, 15921927]

約数ペア:

[(1, 15921927), (3, 5307309), (7, 2274561), (9, 1769103), (21, 758187), (27, 589701), (63, 252729), (81, 196567), (189, 84243), (567, 28081)]