427179987

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{405679}}^1$

素因数の和:405704

約数の個数: 20

約数和(自身を含む): 687221920

約数和(自身を除く): 260041933

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 405679, 1217037, 3651111, 5273827, 10953333, 15821481, 32859999, 47464443, 142393329, 427179987]

約数ペア:

[(1, 427179987), (3, 142393329), (9, 47464443), (13, 32859999), (27, 15821481), (39, 10953333), (81, 5273827), (117, 3651111), (351, 1217037), (1053, 405679)]