20753887

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{659}}^1$

素因数の和:1086

約数の個数: 16

約数和(自身を含む): 25977600

約数和(自身を除く): 5223713

約数列:

[1, 7, 11, 77, 409, 659, 2863, 4499, 4613, 7249, 31493, 50743, 269531, 1886717, 2964841, 20753887]

約数ペア:

[(1, 20753887), (7, 2964841), (11, 1886717), (77, 269531), (409, 50743), (659, 31493), (2863, 7249), (4499, 4613)]