19278819

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2971}}^1$

素因数の和:3087

約数の個数: 24

約数和(自身を含む): 32145152

約数和(自身を除く): 12866333

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 2971, 6489, 8913, 20797, 26739, 62391, 187173, 306013, 918039, 2142091, 2754117, 6426273, 19278819]

約数ペア:

[(1, 19278819), (3, 6426273), (7, 2754117), (9, 2142091), (21, 918039), (63, 306013), (103, 187173), (309, 62391), (721, 26739), (927, 20797), (2163, 8913), (2971, 6489)]