20911158

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{27017}}^1$

素因数の和:27068

約数の個数: 24

約数和(自身を含む): 46362888

約数和(自身を除く): 25451730

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 27017, 54034, 81051, 162102, 243153, 486306, 1161731, 2323462, 3485193, 6970386, 10455579, 20911158]

約数ペア:

[(1, 20911158), (2, 10455579), (3, 6970386), (6, 3485193), (9, 2323462), (18, 1161731), (43, 486306), (86, 243153), (129, 162102), (258, 81051), (387, 54034), (774, 27017)]