1900987989

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{90407}}^1$

素因数の和:90616

約数の個数: 16

約数和(自身を含む): 2609536512

約数和(自身を除く): 708548523

約数列:

[1, 3, 43, 129, 163, 489, 7009, 21027, 90407, 271221, 3887501, 11662503, 14736341, 44209023, 633662663, 1900987989]

約数ペア:

[(1, 1900987989), (3, 633662663), (43, 44209023), (129, 14736341), (163, 11662503), (489, 3887501), (7009, 271221), (21027, 90407)]