20803167

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2729}}^1$

素因数の和:2764

約数の個数: 36

約数和(自身を含む): 37761360

約数和(自身を除く): 16958193

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 121, 231, 363, 693, 847, 1089, 2541, 2729, 7623, 8187, 19103, 24561, 30019, 57309, 90057, 171927, 210133, 270171, 330209, 630399, 990627, 1891197, 2311463, 2971881, 6934389, 20803167]

約数ペア:

[(1, 20803167), (3, 6934389), (7, 2971881), (9, 2311463), (11, 1891197), (21, 990627), (33, 630399), (63, 330209), (77, 270171), (99, 210133), (121, 171927), (231, 90057), (363, 57309), (693, 30019), (847, 24561), (1089, 19103), (2541, 8187), (2729, 7623)]