28405951

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1657}}^1$

素因数の和:1774

約数の個数: 16

約数和(自身を含む): 33955840

約数和(自身を除く): 5549889

約数列:

[1, 7, 31, 79, 217, 553, 1657, 2449, 11599, 17143, 51367, 130903, 359569, 916321, 4057993, 28405951]

約数ペア:

[(1, 28405951), (7, 4057993), (31, 916321), (79, 359569), (217, 130903), (553, 51367), (1657, 17143), (2449, 11599)]