18947133

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{283}}^1$

素因数の和:505

約数の個数: 24

約数和(自身を含む): 28265952

約数和(自身を除く): 9318819

約数列:

[1, 3, 9, 43, 129, 173, 283, 387, 519, 849, 1557, 2547, 7439, 12169, 22317, 36507, 48959, 66951, 109521, 146877, 440631, 2105237, 6315711, 18947133]

約数ペア:

[(1, 18947133), (3, 6315711), (9, 2105237), (43, 440631), (129, 146877), (173, 109521), (283, 66951), (387, 48959), (519, 36507), (849, 22317), (1557, 12169), (2547, 7439)]