21335751

素因数分解:

$3^3\times {\mathrm{503}}^1\times {\mathrm{1571}}^1$

素因数の和:2083

約数の個数: 16

約数和(自身を含む): 31691520

約数和(自身を除く): 10355769

約数列:

[1, 3, 9, 27, 503, 1509, 1571, 4527, 4713, 13581, 14139, 42417, 790213, 2370639, 7111917, 21335751]

約数ペア:

[(1, 21335751), (3, 7111917), (9, 2370639), (27, 790213), (503, 42417), (1509, 14139), (1571, 13581), (4527, 4713)]