19813004

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{120811}}^1$

素因数の和:120856

約数の個数: 12

約数和(自身を含む): 35518728

約数和(自身を除く): 15705724

約数列:

[1, 2, 4, 41, 82, 164, 120811, 241622, 483244, 4953251, 9906502, 19813004]

約数ペア:

[(1, 19813004), (2, 9906502), (4, 4953251), (41, 483244), (82, 241622), (164, 120811)]