28940639

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10259}}^1$

素因数の和:10310

約数の個数: 16

約数和(自身を含む): 36771840

約数和(自身を除く): 7831201

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 10259, 71813, 133367, 318029, 933569, 2226203, 4134377, 28940639]

約数ペア:

[(1, 28940639), (7, 4134377), (13, 2226203), (31, 933569), (91, 318029), (217, 133367), (403, 71813), (2821, 10259)]