28798721

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{18959}}^1$

素因数の和:19004

約数の個数: 12

約数和(自身を含む): 34583040

約数和(自身を除く): 5784319

約数列:

[1, 7, 31, 49, 217, 1519, 18959, 132713, 587729, 928991, 4114103, 28798721]

約数ペア:

[(1, 28798721), (7, 4114103), (31, 928991), (49, 587729), (217, 132713), (1519, 18959)]