31819977

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 54792192

約数和(自身を除く): 22972215

約数列:

[1, 3, 7, 9, 21, 41, 63, 97, 123, 127, 287, 291, 369, 381, 679, 861, 873, 889, 1143, 2037, 2583, 2667, 3977, 5207, 6111, 8001, 11931, 12319, 15621, 27839, 35793, 36449, 36957, 46863, 83517, 86233, 109347, 110871, 250551, 258699, 328041, 505079, 776097, 1515237, 3535553, 4545711, 10606659, 31819977]

約数ペア:

[(1, 31819977), (3, 10606659), (7, 4545711), (9, 3535553), (21, 1515237), (41, 776097), (63, 505079), (97, 328041), (123, 258699), (127, 250551), (287, 110871), (291, 109347), (369, 86233), (381, 83517), (679, 46863), (861, 36957), (873, 36449), (889, 35793), (1143, 27839), (2037, 15621), (2583, 12319), (2667, 11931), (3977, 8001), (5207, 6111)]