18912963

素因数分解:

$3^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{631}}^1$

素因数の和:834

約数の個数: 16

約数和(自身を含む): 25765376

約数和(自身を除く): 6852413

約数列:

[1, 3, 97, 103, 291, 309, 631, 1893, 9991, 29973, 61207, 64993, 183621, 194979, 6304321, 18912963]

約数ペア:

[(1, 18912963), (3, 6304321), (97, 194979), (103, 183621), (291, 64993), (309, 61207), (631, 29973), (1893, 9991)]