19690359

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{547}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 28881792

約数和(自身を除く): 9191433

約数列:

[1, 3, 13, 39, 71, 169, 213, 507, 547, 923, 1641, 2769, 7111, 11999, 21333, 35997, 38837, 92443, 116511, 277329, 504881, 1514643, 6563453, 19690359]

約数ペア:

[(1, 19690359), (3, 6563453), (13, 1514643), (39, 504881), (71, 277329), (169, 116511), (213, 92443), (507, 38837), (547, 35997), (923, 21333), (1641, 11999), (2769, 7111)]