20009451

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 36126720

約数和(自身を除く): 16117269

約数列:

[1, 3, 7, 11, 19, 21, 33, 47, 57, 77, 97, 133, 141, 209, 231, 291, 329, 399, 517, 627, 679, 893, 987, 1067, 1463, 1551, 1843, 2037, 2679, 3201, 3619, 4389, 4559, 5529, 6251, 7469, 9823, 10857, 12901, 13677, 18753, 20273, 22407, 29469, 31913, 38703, 50149, 60819, 68761, 86621, 95739, 141911, 150447, 206283, 259863, 351043, 425733, 606347, 952831, 1053129, 1819041, 2858493, 6669817, 20009451]

約数ペア:

[(1, 20009451), (3, 6669817), (7, 2858493), (11, 1819041), (19, 1053129), (21, 952831), (33, 606347), (47, 425733), (57, 351043), (77, 259863), (97, 206283), (133, 150447), (141, 141911), (209, 95739), (231, 86621), (291, 68761), (329, 60819), (399, 50149), (517, 38703), (627, 31913), (679, 29469), (893, 22407), (987, 20273), (1067, 18753), (1463, 13677), (1551, 12901), (1843, 10857), (2037, 9823), (2679, 7469), (3201, 6251), (3619, 5529), (4389, 4559)]