20420787

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{739}}^1$

素因数の和:954

約数の個数: 16

約数和(自身を含む): 27895040

約数和(自身を除く): 7474253

約数列:

[1, 3, 61, 151, 183, 453, 739, 2217, 9211, 27633, 45079, 111589, 135237, 334767, 6806929, 20420787]

約数ペア:

[(1, 20420787), (3, 6806929), (61, 334767), (151, 135237), (183, 111589), (453, 45079), (739, 27633), (2217, 9211)]