20805220809

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{32559031}}^1$

素因数の和:32559108

約数の個数: 12

約数和(自身を含む): 30475253952

約数和(自身を除く): 9670033143

約数列:

[1, 3, 9, 71, 213, 639, 32559031, 97677093, 293031279, 2311691201, 6935073603, 20805220809]

約数ペア:

[(1, 20805220809), (3, 6935073603), (9, 2311691201), (71, 293031279), (213, 97677093), (639, 32559031)]