21048489

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4339}}^1$

素因数の和:4370

約数の個数: 36

約数和(自身を含む): 38591280

約数和(自身を除く): 17542791

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 147, 231, 441, 539, 693, 1617, 4339, 4851, 13017, 30373, 39051, 47729, 91119, 143187, 212611, 273357, 334103, 429561, 637833, 1002309, 1913499, 2338721, 3006927, 7016163, 21048489]

約数ペア:

[(1, 21048489), (3, 7016163), (7, 3006927), (9, 2338721), (11, 1913499), (21, 1002309), (33, 637833), (49, 429561), (63, 334103), (77, 273357), (99, 212611), (147, 143187), (231, 91119), (441, 47729), (539, 39051), (693, 30373), (1617, 13017), (4339, 4851)]