21787315

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{479}}^1\times {\mathrm{827}}^1$

素因数の和:1322

約数の個数: 16

約数和(自身を含む): 28615680

約数和(自身を除く): 6828365

約数列:

[1, 5, 11, 55, 479, 827, 2395, 4135, 5269, 9097, 26345, 45485, 396133, 1980665, 4357463, 21787315]

約数ペア:

[(1, 21787315), (5, 4357463), (11, 1980665), (55, 396133), (479, 45485), (827, 26345), (2395, 9097), (4135, 5269)]