18742986

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:391

約数の個数: 48

約数和(自身を含む): 42162120

約数和(自身を除く): 23419134

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 109, 123, 218, 233, 246, 327, 369, 466, 654, 699, 738, 981, 1398, 1962, 2097, 4194, 4469, 8938, 9553, 13407, 19106, 25397, 26814, 28659, 40221, 50794, 57318, 76191, 80442, 85977, 152382, 171954, 228573, 457146, 1041277, 2082554, 3123831, 6247662, 9371493, 18742986]

約数ペア:

[(1, 18742986), (2, 9371493), (3, 6247662), (6, 3123831), (9, 2082554), (18, 1041277), (41, 457146), (82, 228573), (109, 171954), (123, 152382), (218, 85977), (233, 80442), (246, 76191), (327, 57318), (369, 50794), (466, 40221), (654, 28659), (699, 26814), (738, 25397), (981, 19106), (1398, 13407), (1962, 9553), (2097, 8938), (4194, 4469)]