20701155

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{81181}}^1$

素因数の和:81206

約数の個数: 16

約数和(自身を含む): 35070624

約数和(自身を除く): 14369469

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 81181, 243543, 405905, 1217715, 1380077, 4140231, 6900385, 20701155]

約数ペア:

[(1, 20701155), (3, 6900385), (5, 4140231), (15, 1380077), (17, 1217715), (51, 405905), (85, 243543), (255, 81181)]