20297165

素因数分解:

$5^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{1321}}^1$

素因数の和:1772

約数の個数: 16

約数和(自身を含む): 27920640

約数和(自身を除く): 7623475

約数列:

[1, 5, 7, 35, 439, 1321, 2195, 3073, 6605, 9247, 15365, 46235, 579919, 2899595, 4059433, 20297165]

約数ペア:

[(1, 20297165), (5, 4059433), (7, 2899595), (35, 579919), (439, 46235), (1321, 15365), (2195, 9247), (3073, 6605)]