19957782

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{255869}}^1$

素因数の和:255887

約数の個数: 16

約数和(自身を含む): 42986160

約数和(自身を除く): 23028378

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 255869, 511738, 767607, 1535214, 3326297, 6652594, 9978891, 19957782]

約数ペア:

[(1, 19957782), (2, 9978891), (3, 6652594), (6, 3326297), (13, 1535214), (26, 767607), (39, 511738), (78, 255869)]