285117721

素因数分解:

$7^3\times {\mathrm{61}}^1\times {\mathrm{13627}}^1$

素因数の和:13709

約数の個数: 16

約数和(自身を含む): 337974400

約数和(自身を除く): 52856679

約数列:

[1, 7, 49, 61, 343, 427, 2989, 13627, 20923, 95389, 667723, 831247, 4674061, 5818729, 40731103, 285117721]

約数ペア:

[(1, 285117721), (7, 40731103), (49, 5818729), (61, 4674061), (343, 831247), (427, 667723), (2989, 95389), (13627, 20923)]