19401009

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{919}}^1$

素因数の和:1180

約数の個数: 16

約数和(自身を含む): 26849280

約数和(自身を除く): 7448271

約数列:

[1, 3, 31, 93, 227, 681, 919, 2757, 7037, 21111, 28489, 85467, 208613, 625839, 6467003, 19401009]

約数ペア:

[(1, 19401009), (3, 6467003), (31, 625839), (93, 208613), (227, 85467), (681, 28489), (919, 21111), (2757, 7037)]