18157029821

素因数分解:

$7^3\times {\mathrm{2503}}^1\times {\mathrm{21149}}^1$

素因数の和:23673

約数の個数: 16

約数和(自身を含む): 21183840000

約数和(自身を除く): 3026810179

約数列:

[1, 7, 49, 343, 2503, 17521, 21149, 122647, 148043, 858529, 1036301, 7254107, 52935947, 370551629, 2593861403, 18157029821]

約数ペア:

[(1, 18157029821), (7, 2593861403), (49, 370551629), (343, 52935947), (2503, 7254107), (17521, 1036301), (21149, 858529), (122647, 148043)]