387942777

素因数分解:

$3^4\times {\mathrm{2141}}^1\times {\mathrm{2237}}^1$

素因数の和:4390

約数の個数: 20

約数和(自身を含む): 580049316

約数和(自身を除く): 192106539

約数列:

[1, 3, 9, 27, 81, 2141, 2237, 6423, 6711, 19269, 20133, 57807, 60399, 173421, 181197, 4789417, 14368251, 43104753, 129314259, 387942777]

約数ペア:

[(1, 387942777), (3, 129314259), (9, 43104753), (27, 14368251), (81, 4789417), (2141, 181197), (2237, 173421), (6423, 60399), (6711, 57807), (19269, 20133)]