620194143

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{251}}^1\times {\mathrm{647}}^1$

素因数の和:987

約数の個数: 32

約数和(自身を含む): 888330240

約数和(自身を除く): 268136097

約数列:

[1, 3, 19, 57, 67, 201, 251, 647, 753, 1273, 1941, 3819, 4769, 12293, 14307, 16817, 36879, 43349, 50451, 130047, 162397, 319523, 487191, 823631, 958569, 2470893, 3085543, 9256629, 10880599, 32641797, 206731381, 620194143]

約数ペア:

[(1, 620194143), (3, 206731381), (19, 32641797), (57, 10880599), (67, 9256629), (201, 3085543), (251, 2470893), (647, 958569), (753, 823631), (1273, 487191), (1941, 319523), (3819, 162397), (4769, 130047), (12293, 50451), (14307, 43349), (16817, 36879)]