21019839

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{2341}}^1$

素因数の和:2458

約数の個数: 16

約数和(自身を含む): 29115744

約数和(自身を除く): 8095905

約数列:

[1, 3, 41, 73, 123, 219, 2341, 2993, 7023, 8979, 95981, 170893, 287943, 512679, 7006613, 21019839]

約数ペア:

[(1, 21019839), (3, 7006613), (41, 512679), (73, 287943), (123, 170893), (219, 95981), (2341, 8979), (2993, 7023)]