28321993

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{4091}}^1$

素因数の和:4164

約数の個数: 16

約数和(自身を含む): 34569216

約数和(自身を除く): 6247223

約数列:

[1, 7, 23, 43, 161, 301, 989, 4091, 6923, 28637, 94093, 175913, 658651, 1231391, 4045999, 28321993]

約数ペア:

[(1, 28321993), (7, 4045999), (23, 1231391), (43, 658651), (161, 175913), (301, 94093), (989, 28637), (4091, 6923)]