208689621

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{231107}}^1$

素因数の和:231160

約数の個数: 16

約数和(自身を含む): 325400064

約数和(自身を除く): 116710443

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 231107, 693321, 1617749, 4853247, 9937601, 29812803, 69563207, 208689621]

約数ペア:

[(1, 208689621), (3, 69563207), (7, 29812803), (21, 9937601), (43, 4853247), (129, 1617749), (301, 693321), (903, 231107)]