538687617

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{321221}}^1$

素因数の和:321280

約数の個数: 16

約数和(自身を含む): 791491008

約数和(自身を除く): 252803391

約数列:

[1, 3, 13, 39, 43, 129, 559, 1677, 321221, 963663, 4175873, 12527619, 13812503, 41437509, 179562539, 538687617]

約数ペア:

[(1, 538687617), (3, 179562539), (13, 41437509), (39, 13812503), (43, 12527619), (129, 4175873), (559, 963663), (1677, 321221)]