21124408040

素因数分解:

$2^3\times 5^1\times {\mathrm{528110201}}^1$

素因数の和:528110212

約数の個数: 16

約数和(自身を含む): 47529918180

約数和(自身を除く): 26405510140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 528110201, 1056220402, 2112440804, 2640551005, 4224881608, 5281102010, 10562204020, 21124408040]

約数ペア:

[(1, 21124408040), (2, 10562204020), (4, 5281102010), (5, 4224881608), (8, 2640551005), (10, 2112440804), (20, 1056220402), (40, 528110201)]