15721433

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5573}}^1$

素因数の和:5624

約数の個数: 16

約数和(自身を含む): 19977216

約数和(自身を除く): 4255783

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 5573, 39011, 72449, 172763, 507143, 1209341, 2245919, 15721433]

約数ペア:

[(1, 15721433), (7, 2245919), (13, 1209341), (31, 507143), (91, 172763), (217, 72449), (403, 39011), (2821, 5573)]