19143709

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{709}}^1$

素因数の和:820

約数の個数: 16

約数和(自身を含む): 21629440

約数和(自身を除く): 2485731

約数列:

[1, 13, 31, 67, 403, 709, 871, 2077, 9217, 21979, 27001, 47503, 285727, 617539, 1472593, 19143709]

約数ペア:

[(1, 19143709), (13, 1472593), (31, 617539), (67, 285727), (403, 47503), (709, 27001), (871, 21979), (2077, 9217)]