18628137

素因数分解:

$3^6\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:153

約数の個数: 56

約数和(自身を含む): 32107968

約数和(自身を除く): 13479831

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 81, 99, 101, 207, 243, 253, 297, 303, 621, 729, 759, 891, 909, 1111, 1863, 2277, 2323, 2673, 2727, 3333, 5589, 6831, 6969, 8019, 8181, 9999, 16767, 20493, 20907, 24543, 25553, 29997, 61479, 62721, 73629, 76659, 89991, 184437, 188163, 229977, 269973, 564489, 689931, 809919, 1693467, 2069793, 6209379, 18628137]

約数ペア:

[(1, 18628137), (3, 6209379), (9, 2069793), (11, 1693467), (23, 809919), (27, 689931), (33, 564489), (69, 269973), (81, 229977), (99, 188163), (101, 184437), (207, 89991), (243, 76659), (253, 73629), (297, 62721), (303, 61479), (621, 29997), (729, 25553), (759, 24543), (891, 20907), (909, 20493), (1111, 16767), (1863, 9999), (2277, 8181), (2323, 8019), (2673, 6969), (2727, 6831), (3333, 5589)]