18520205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{4057}}^1$

素因数の和:4156

約数の個数: 16

約数和(自身を含む): 24542784

約数和(自身を除く): 6022579

約数列:

[1, 5, 11, 55, 83, 415, 913, 4057, 4565, 20285, 44627, 223135, 336731, 1683655, 3704041, 18520205]

約数ペア:

[(1, 18520205), (5, 3704041), (11, 1683655), (55, 336731), (83, 223135), (415, 44627), (913, 20285), (4057, 4565)]