20189489

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:520

約数の個数: 16

約数和(自身を含む): 22239360

約数和(自身を除く): 2049871

約数列:

[1, 17, 43, 71, 389, 731, 1207, 3053, 6613, 16727, 27619, 51901, 284359, 469523, 1187617, 20189489]

約数ペア:

[(1, 20189489), (17, 1187617), (43, 469523), (71, 284359), (389, 51901), (731, 27619), (1207, 16727), (3053, 6613)]