28178427

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{8689}}^1$

素因数の和:8762

約数の個数: 16

約数和(自身を含む): 40043520

約数和(自身を除く): 11865093

約数列:

[1, 3, 23, 47, 69, 141, 1081, 3243, 8689, 26067, 199847, 408383, 599541, 1225149, 9392809, 28178427]

約数ペア:

[(1, 28178427), (3, 9392809), (23, 1225149), (47, 599541), (69, 408383), (141, 199847), (1081, 26067), (3243, 8689)]