1639001871

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{727}}^1\times {\mathrm{2141}}^1$

素因数の和:2893

約数の個数: 40

約数和(自身を含む): 2641582944

約数和(自身を除く): 1002581073

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 727, 1053, 2141, 2181, 6423, 6543, 9451, 19269, 19629, 27833, 28353, 57807, 58887, 83499, 85059, 173421, 250497, 255177, 751491, 765531, 1556507, 2254473, 4669521, 14008563, 20234591, 42025689, 60703773, 126077067, 182111319, 546333957, 1639001871]

約数ペア:

[(1, 1639001871), (3, 546333957), (9, 182111319), (13, 126077067), (27, 60703773), (39, 42025689), (81, 20234591), (117, 14008563), (351, 4669521), (727, 2254473), (1053, 1556507), (2141, 765531), (2181, 751491), (6423, 255177), (6543, 250497), (9451, 173421), (19269, 85059), (19629, 83499), (27833, 58887), (28353, 57807)]