20178872819

素因数分解:

$7^3\times {\mathrm{419}}^1\times {\mathrm{140407}}^1$

素因数の和:140847

約数の個数: 16

約数和(自身を含む): 23588544000

約数和(自身を除く): 3409671181

約数列:

[1, 7, 49, 343, 419, 2933, 20531, 140407, 143717, 982849, 6879943, 48159601, 58830533, 411813731, 2882696117, 20178872819]

約数ペア:

[(1, 20178872819), (7, 2882696117), (49, 411813731), (343, 58830533), (419, 48159601), (2933, 6879943), (20531, 982849), (140407, 143717)]