19906929

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{10193}}^1$

素因数の和:10237

約数の個数: 24

約数和(自身を含む): 33925632

約数和(自身を除く): 14018703

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 10193, 30579, 71351, 91737, 214053, 315983, 642159, 947949, 2211881, 2843847, 6635643, 19906929]

約数ペア:

[(1, 19906929), (3, 6635643), (7, 2843847), (9, 2211881), (21, 947949), (31, 642159), (63, 315983), (93, 214053), (217, 91737), (279, 71351), (651, 30579), (1953, 10193)]