19242881

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2543}}^1$

素因数の和:2620

約数の個数: 16

約数和(自身を含む): 23445504

約数和(自身を除く): 4202623

約数列:

[1, 7, 23, 47, 161, 329, 1081, 2543, 7567, 17801, 58489, 119521, 409423, 836647, 2748983, 19242881]

約数ペア:

[(1, 19242881), (7, 2748983), (23, 836647), (47, 409423), (161, 119521), (329, 58489), (1081, 17801), (2543, 7567)]