19696431

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{857}}^1$

素因数の和:1070

約数の個数: 16

約数和(自身を含む): 27016704

約数和(自身を除く): 7320273

約数列:

[1, 3, 47, 141, 163, 489, 857, 2571, 7661, 22983, 40279, 120837, 139691, 419073, 6565477, 19696431]

約数ペア:

[(1, 19696431), (3, 6565477), (47, 419073), (141, 139691), (163, 120837), (489, 40279), (857, 22983), (2571, 7661)]