19865097

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7333}}^1$

素因数の和:7389

約数の個数: 24

約数和(自身を含む): 33560384

約数和(自身を除く): 13695287

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 7333, 21999, 51331, 65997, 153993, 315319, 461979, 945957, 2207233, 2837871, 6621699, 19865097]

約数ペア:

[(1, 19865097), (3, 6621699), (7, 2837871), (9, 2207233), (21, 945957), (43, 461979), (63, 315319), (129, 153993), (301, 65997), (387, 51331), (903, 21999), (2709, 7333)]