12738789

素因数分解:

$3^5\times 7^1\times {\mathrm{7489}}^1$

素因数の和:7511

約数の個数: 24

約数和(自身を含む): 21810880

約数和(自身を除く): 9072091

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 7489, 22467, 52423, 67401, 157269, 202203, 471807, 606609, 1415421, 1819827, 4246263, 12738789]

約数ペア:

[(1, 12738789), (3, 4246263), (7, 1819827), (9, 1415421), (21, 606609), (27, 471807), (63, 202203), (81, 157269), (189, 67401), (243, 52423), (567, 22467), (1701, 7489)]