12656169

素因数分解:

$3^9\times {\mathrm{643}}^1$

素因数の和:670

約数の個数: 20

約数和(自身を含む): 19013456

約数和(自身を除く): 6357287

約数列:

[1, 3, 9, 27, 81, 243, 643, 729, 1929, 2187, 5787, 6561, 17361, 19683, 52083, 156249, 468747, 1406241, 4218723, 12656169]

約数ペア:

[(1, 12656169), (3, 4218723), (9, 1406241), (27, 468747), (81, 156249), (243, 52083), (643, 19683), (729, 17361), (1929, 6561), (2187, 5787)]