19287919

素因数分解:

$7^3\times {\mathrm{53}}^1\times {\mathrm{1061}}^1$

素因数の和:1135

約数の個数: 16

約数和(自身を含む): 22939200

約数和(自身を除く): 3651281

約数列:

[1, 7, 49, 53, 343, 371, 1061, 2597, 7427, 18179, 51989, 56233, 363923, 393631, 2755417, 19287919]

約数ペア:

[(1, 19287919), (7, 2755417), (49, 393631), (53, 363923), (343, 56233), (371, 51989), (1061, 18179), (2597, 7427)]