217420991

素因数分解:

${\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1\times {\mathrm{433}}^1$

素因数の和:842

約数の個数: 16

約数和(自身を含む): 229964448

約数和(自身を除く): 12543457

約数列:

[1, 37, 41, 331, 433, 1517, 12247, 13571, 16021, 17753, 143323, 502127, 656861, 5302951, 5876243, 217420991]

約数ペア:

[(1, 217420991), (37, 5876243), (41, 5302951), (331, 656861), (433, 502127), (1517, 143323), (12247, 17753), (13571, 16021)]