211737123

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^2\times {\mathrm{359}}^1$

素因数の和:520

約数の個数: 36

約数和(自身を含む): 335003760

約数和(自身を除く): 123266637

約数列:

[1, 3, 9, 13, 39, 71, 117, 213, 359, 639, 923, 1077, 2769, 3231, 4667, 5041, 8307, 14001, 15123, 25489, 42003, 45369, 65533, 76467, 196599, 229401, 331357, 589797, 994071, 1809719, 2982213, 5429157, 16287471, 23526347, 70579041, 211737123]

約数ペア:

[(1, 211737123), (3, 70579041), (9, 23526347), (13, 16287471), (39, 5429157), (71, 2982213), (117, 1809719), (213, 994071), (359, 589797), (639, 331357), (923, 229401), (1077, 196599), (2769, 76467), (3231, 65533), (4667, 45369), (5041, 42003), (8307, 25489), (14001, 15123)]