20907774

素因数分解:

$2^1\times 3^3\times {\mathrm{313}}^1\times {\mathrm{1237}}^1$

素因数の和:1561

約数の個数: 32

約数和(自身を含む): 46647840

約数和(自身を除く): 25740066

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 313, 626, 939, 1237, 1878, 2474, 2817, 3711, 5634, 7422, 8451, 11133, 16902, 22266, 33399, 66798, 387181, 774362, 1161543, 2323086, 3484629, 6969258, 10453887, 20907774]

約数ペア:

[(1, 20907774), (2, 10453887), (3, 6969258), (6, 3484629), (9, 2323086), (18, 1161543), (27, 774362), (54, 387181), (313, 66798), (626, 33399), (939, 22266), (1237, 16902), (1878, 11133), (2474, 8451), (2817, 7422), (3711, 5634)]