20920585

素因数分解:

$5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{4363}}^1$

素因数の和:4512

約数の個数: 16

約数和(自身を含む): 28907136

約数和(自身を除く): 7986551

約数列:

[1, 5, 7, 35, 137, 685, 959, 4363, 4795, 21815, 30541, 152705, 597731, 2988655, 4184117, 20920585]

約数ペア:

[(1, 20920585), (5, 4184117), (7, 2988655), (35, 597731), (137, 152705), (685, 30541), (959, 21815), (4363, 4795)]