20872929

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{90359}}^1$

素因数の和:90380

約数の個数: 16

約数和(自身を含む): 34698240

約数和(自身を除く): 13825311

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 90359, 271077, 632513, 993949, 1897539, 2981847, 6957643, 20872929]

約数ペア:

[(1, 20872929), (3, 6957643), (7, 2981847), (11, 1897539), (21, 993949), (33, 632513), (77, 271077), (231, 90359)]