489374217

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{208333}}^1$

素因数の和:208374

約数の個数: 20

約数和(自身を含む): 756252420

約数和(自身を除く): 266878203

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 208333, 624999, 1874997, 5624991, 6041657, 16874973, 18124971, 54374913, 163124739, 489374217]

約数ペア:

[(1, 489374217), (3, 163124739), (9, 54374913), (27, 18124971), (29, 16874973), (81, 6041657), (87, 5624991), (261, 1874997), (783, 624999), (2349, 208333)]