20008197

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{967}}^1$

素因数の和:1014

約数の個数: 36

約数和(自身を含む): 33473440

約数和(自身を除く): 13465243

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 121, 171, 209, 363, 627, 967, 1089, 1881, 2299, 2901, 6897, 8703, 10637, 18373, 20691, 31911, 55119, 95733, 117007, 165357, 202103, 351021, 606309, 1053063, 1818927, 2223133, 6669399, 20008197]

約数ペア:

[(1, 20008197), (3, 6669399), (9, 2223133), (11, 1818927), (19, 1053063), (33, 606309), (57, 351021), (99, 202103), (121, 165357), (171, 117007), (209, 95733), (363, 55119), (627, 31911), (967, 20691), (1089, 18373), (1881, 10637), (2299, 8703), (2901, 6897)]