21256477

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1601}}^1$

素因数の和:1700

約数の個数: 16

約数和(自身を含む): 24914304

約数和(自身を除く): 3657827

約数列:

[1, 11, 17, 71, 187, 781, 1207, 1601, 13277, 17611, 27217, 113671, 299387, 1250381, 1932407, 21256477]

約数ペア:

[(1, 21256477), (11, 1932407), (17, 1250381), (71, 299387), (187, 113671), (781, 27217), (1207, 17611), (1601, 13277)]