217122191361

素因数分解:

$3^4\times {\mathrm{20897}}^1\times {\mathrm{128273}}^1$

素因数の和:149182

約数の個数: 20

約数和(自身を含む): 324361076292

約数和(自身を除く): 107238884931

約数列:

[1, 3, 9, 27, 81, 20897, 62691, 128273, 188073, 384819, 564219, 1154457, 1692657, 3463371, 10390113, 2680520881, 8041562643, 24124687929, 72374063787, 217122191361]

約数ペア:

[(1, 217122191361), (3, 72374063787), (9, 24124687929), (27, 8041562643), (81, 2680520881), (20897, 10390113), (62691, 3463371), (128273, 1692657), (188073, 1154457), (384819, 564219)]