21156619

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4919}}^1$

素因数の和:4970

約数の個数: 16

約数和(自身を含む): 25505280

約数和(自身を除く): 4348661

約数列:

[1, 11, 17, 23, 187, 253, 391, 4301, 4919, 54109, 83623, 113137, 919853, 1244507, 1923329, 21156619]

約数ペア:

[(1, 21156619), (11, 1923329), (17, 1244507), (23, 919853), (187, 113137), (253, 83623), (391, 54109), (4301, 4919)]