21615297

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{719}}^1\times {\mathrm{911}}^1$

素因数の和:1644

約数の個数: 16

約数和(自身を含む): 31518720

約数和(自身を除く): 9903423

約数列:

[1, 3, 11, 33, 719, 911, 2157, 2733, 7909, 10021, 23727, 30063, 655009, 1965027, 7205099, 21615297]

約数ペア:

[(1, 21615297), (3, 7205099), (11, 1965027), (33, 655009), (719, 30063), (911, 23727), (2157, 10021), (2733, 7909)]