20782503

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{3083}}^1$

素因数の和:3203

約数の個数: 24

約数和(自身を含む): 34639488

約数和(自身を除く): 13856985

約数列:

[1, 3, 7, 9, 21, 63, 107, 321, 749, 963, 2247, 3083, 6741, 9249, 21581, 27747, 64743, 194229, 329881, 989643, 2309167, 2968929, 6927501, 20782503]

約数ペア:

[(1, 20782503), (3, 6927501), (7, 2968929), (9, 2309167), (21, 989643), (63, 329881), (107, 194229), (321, 64743), (749, 27747), (963, 21581), (2247, 9249), (3083, 6741)]