21126391

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{941}}^1$

素因数の和:1122

約数の個数: 16

約数和(自身を含む): 25004448

約数和(自身を除く): 3878057

約数列:

[1, 11, 13, 143, 157, 941, 1727, 2041, 10351, 12233, 22451, 134563, 147737, 1625107, 1920581, 21126391]

約数ペア:

[(1, 21126391), (11, 1920581), (13, 1625107), (143, 147737), (157, 134563), (941, 22451), (1727, 12233), (2041, 10351)]