19897115

素因数分解:

$5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{1319}}^1$

素因数の和:1762

約数の個数: 16

約数和(自身を含む): 27371520

約数和(自身を除く): 7474405

約数列:

[1, 5, 7, 35, 431, 1319, 2155, 3017, 6595, 9233, 15085, 46165, 568489, 2842445, 3979423, 19897115]

約数ペア:

[(1, 19897115), (5, 3979423), (7, 2842445), (35, 568489), (431, 46165), (1319, 15085), (2155, 9233), (3017, 6595)]