19581485

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{281}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 29562624

約数和(自身を除く): 9981139

約数列:

[1, 5, 7, 11, 35, 55, 77, 181, 281, 385, 905, 1267, 1405, 1967, 1991, 3091, 6335, 9835, 9955, 13937, 15455, 21637, 50861, 69685, 108185, 254305, 356027, 559471, 1780135, 2797355, 3916297, 19581485]

約数ペア:

[(1, 19581485), (5, 3916297), (7, 2797355), (11, 1780135), (35, 559471), (55, 356027), (77, 254305), (181, 108185), (281, 69685), (385, 50861), (905, 21637), (1267, 15455), (1405, 13937), (1967, 9955), (1991, 9835), (3091, 6335)]