20643777

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29789}}^1$

素因数の和:29813

約数の個数: 24

約数和(自身を含む): 37177920

約数和(自身を除く): 16534143

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 29789, 89367, 208523, 268101, 327679, 625569, 983037, 1876707, 2293753, 2949111, 6881259, 20643777]

約数ペア:

[(1, 20643777), (3, 6881259), (7, 2949111), (9, 2293753), (11, 1876707), (21, 983037), (33, 625569), (63, 327679), (77, 268101), (99, 208523), (231, 89367), (693, 29789)]