20313171

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{383}}^1$

素因数の和:543

約数の個数: 24

約数和(自身を含む): 30191616

約数和(自身を除く): 9878445

約数列:

[1, 3, 9, 71, 83, 213, 249, 383, 639, 747, 1149, 3447, 5893, 17679, 27193, 31789, 53037, 81579, 95367, 244737, 286101, 2257019, 6771057, 20313171]

約数ペア:

[(1, 20313171), (3, 6771057), (9, 2257019), (71, 286101), (83, 244737), (213, 95367), (249, 81579), (383, 53037), (639, 31789), (747, 27193), (1149, 17679), (3447, 5893)]