20685379

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 26320896

約数和(自身を除く): 5635517

約数列:

[1, 11, 13, 17, 67, 127, 143, 187, 221, 737, 871, 1139, 1397, 1651, 2159, 2431, 8509, 9581, 12529, 14807, 18161, 23749, 28067, 93599, 110617, 144653, 162877, 308737, 1216787, 1591183, 1880489, 20685379]

約数ペア:

[(1, 20685379), (11, 1880489), (13, 1591183), (17, 1216787), (67, 308737), (127, 162877), (143, 144653), (187, 110617), (221, 93599), (737, 28067), (871, 23749), (1139, 18161), (1397, 14807), (1651, 12529), (2159, 9581), (2431, 8509)]