19661285

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18121}}^1$

素因数の和:18164

約数の個数: 16

約数和(自身を含む): 27835392

約数和(自身を除く): 8174107

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 18121, 90605, 126847, 561751, 634235, 2808755, 3932257, 19661285]

約数ペア:

[(1, 19661285), (5, 3932257), (7, 2808755), (31, 634235), (35, 561751), (155, 126847), (217, 90605), (1085, 18121)]