21259767

素因数分解:

$3^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:590

約数の個数: 16

約数和(自身を含む): 28800000

約数和(自身を除く): 7540233

約数列:

[1, 3, 149, 199, 239, 447, 597, 717, 29651, 35611, 47561, 88953, 106833, 142683, 7086589, 21259767]

約数ペア:

[(1, 21259767), (3, 7086589), (149, 142683), (199, 106833), (239, 88953), (447, 47561), (597, 35611), (717, 29651)]