20797155

素因数分解:

$3^5\times 5^1\times {\mathrm{17117}}^1$

素因数の和:17137

約数の個数: 24

約数和(自身を含む): 37385712

約数和(自身を除く): 16588557

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 17117, 51351, 85585, 154053, 256755, 462159, 770265, 1386477, 2310795, 4159431, 6932385, 20797155]

約数ペア:

[(1, 20797155), (3, 6932385), (5, 4159431), (9, 2310795), (15, 1386477), (27, 770265), (45, 462159), (81, 256755), (135, 154053), (243, 85585), (405, 51351), (1215, 17117)]