20761585

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16811}}^1$

素因数の和:16848

約数の個数: 16

約数和(自身を含む): 28244160

約数和(自身を除く): 7482575

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 16811, 84055, 218543, 319409, 1092715, 1597045, 4152317, 20761585]

約数ペア:

[(1, 20761585), (5, 4152317), (13, 1597045), (19, 1092715), (65, 319409), (95, 218543), (247, 84055), (1235, 16811)]