643654539

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{271}}^1\times {\mathrm{727}}^1$

素因数の和:1029

約数の個数: 48

約数和(自身を含む): 1053445120

約数和(自身を除く): 409790581

約数列:

[1, 3, 9, 11, 27, 33, 99, 121, 271, 297, 363, 727, 813, 1089, 2181, 2439, 2981, 3267, 6543, 7317, 7997, 8943, 19629, 23991, 26829, 32791, 71973, 80487, 87967, 98373, 197017, 215919, 263901, 295119, 591051, 791703, 885357, 1773153, 2167187, 2375109, 5319459, 6501561, 19504683, 23839057, 58514049, 71517171, 214551513, 643654539]

約数ペア:

[(1, 643654539), (3, 214551513), (9, 71517171), (11, 58514049), (27, 23839057), (33, 19504683), (99, 6501561), (121, 5319459), (271, 2375109), (297, 2167187), (363, 1773153), (727, 885357), (813, 791703), (1089, 591051), (2181, 295119), (2439, 263901), (2981, 215919), (3267, 197017), (6543, 98373), (7317, 87967), (7997, 80487), (8943, 71973), (19629, 32791), (23991, 26829)]