21236485

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{433}}^1\times {\mathrm{577}}^1$

素因数の和:1032

約数の個数: 16

約数和(自身を含む): 27092016

約数和(自身を除く): 5855531

約数列:

[1, 5, 17, 85, 433, 577, 2165, 2885, 7361, 9809, 36805, 49045, 249841, 1249205, 4247297, 21236485]

約数ペア:

[(1, 21236485), (5, 4247297), (17, 1249205), (85, 249841), (433, 49045), (577, 36805), (2165, 9809), (2885, 7361)]