18438561

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{467}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 27597024

約数和(自身を除く): 9158463

約数列:

[1, 3, 9, 41, 107, 123, 321, 369, 467, 963, 1401, 4203, 4387, 13161, 19147, 39483, 49969, 57441, 149907, 172323, 449721, 2048729, 6146187, 18438561]

約数ペア:

[(1, 18438561), (3, 6146187), (9, 2048729), (41, 449721), (107, 172323), (123, 149907), (321, 57441), (369, 49969), (467, 39483), (963, 19147), (1401, 13161), (4203, 4387)]