20979513

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{45707}}^1$

素因数の和:45733

約数の個数: 16

約数和(自身を含む): 32909760

約数和(自身を除く): 11930247

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 45707, 137121, 411363, 777019, 1234089, 2331057, 6993171, 20979513]

約数ペア:

[(1, 20979513), (3, 6993171), (9, 2331057), (17, 1234089), (27, 777019), (51, 411363), (153, 137121), (459, 45707)]