20297409

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{8663}}^1$

素因数の和:8748

約数の個数: 16

約数和(自身を含む): 29942784

約数和(自身を除く): 9645375

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 8663, 25989, 95293, 285879, 615073, 1845219, 6765803, 20297409]

約数ペア:

[(1, 20297409), (3, 6765803), (11, 1845219), (33, 615073), (71, 285879), (213, 95293), (781, 25989), (2343, 8663)]