12920781

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{1439}}^1$

素因数の和:1556

約数の個数: 16

約数和(自身を含む): 17902080

約数和(自身を除く): 4981299

約数列:

[1, 3, 41, 73, 123, 219, 1439, 2993, 4317, 8979, 58999, 105047, 176997, 315141, 4306927, 12920781]

約数ペア:

[(1, 12920781), (3, 4306927), (41, 315141), (73, 176997), (123, 105047), (219, 58999), (1439, 8979), (2993, 4317)]