12817845

素因数分解:

$3^4\times 5^1\times {\mathrm{31649}}^1$

素因数の和:31666

約数の個数: 20

約数和(自身を含む): 22977900

約数和(自身を除く): 10160055

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 31649, 94947, 158245, 284841, 474735, 854523, 1424205, 2563569, 4272615, 12817845]

約数ペア:

[(1, 12817845), (3, 4272615), (5, 2563569), (9, 1424205), (15, 854523), (27, 474735), (45, 284841), (81, 158245), (135, 94947), (405, 31649)]