20784295

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25819}}^1$

素因数の和:25854

約数の個数: 16

約数和(自身を含む): 29744640

約数和(自身を除く): 8960345

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 25819, 129095, 180733, 593837, 903665, 2969185, 4156859, 20784295]

約数ペア:

[(1, 20784295), (5, 4156859), (7, 2969185), (23, 903665), (35, 593837), (115, 180733), (161, 129095), (805, 25819)]