19985315

素因数分解:

$5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{3637}}^1$

素因数の和:3806

約数の個数: 16

約数和(自身を含む): 27590592

約数和(自身を除く): 7605277

約数列:

[1, 5, 7, 35, 157, 785, 1099, 3637, 5495, 18185, 25459, 127295, 571009, 2855045, 3997063, 19985315]

約数ペア:

[(1, 19985315), (5, 3997063), (7, 2855045), (35, 571009), (157, 127295), (785, 25459), (1099, 18185), (3637, 5495)]