21497439

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{2399}}^1$

素因数の和:2534

約数の個数: 16

約数和(自身を含む): 29952000

約数和(自身を除く): 8454561

約数列:

[1, 3, 29, 87, 103, 309, 2399, 2987, 7197, 8961, 69571, 208713, 247097, 741291, 7165813, 21497439]

約数ペア:

[(1, 21497439), (3, 7165813), (29, 741291), (87, 247097), (103, 208713), (309, 69571), (2399, 8961), (2987, 7197)]