18771795

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2591}}^1$

素因数の和:2632

約数の個数: 48

約数和(自身を含む): 38817792

約数和(自身を除く): 20045997

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 63, 69, 105, 115, 161, 207, 315, 345, 483, 805, 1035, 1449, 2415, 2591, 7245, 7773, 12955, 18137, 23319, 38865, 54411, 59593, 90685, 116595, 163233, 178779, 272055, 297965, 417151, 536337, 816165, 893895, 1251453, 2085755, 2681685, 3754359, 6257265, 18771795]

約数ペア:

[(1, 18771795), (3, 6257265), (5, 3754359), (7, 2681685), (9, 2085755), (15, 1251453), (21, 893895), (23, 816165), (35, 536337), (45, 417151), (63, 297965), (69, 272055), (105, 178779), (115, 163233), (161, 116595), (207, 90685), (315, 59593), (345, 54411), (483, 38865), (805, 23319), (1035, 18137), (1449, 12955), (2415, 7773), (2591, 7245)]