19782216

素因数分解:

$2^3\times 3^2\times {\mathrm{31}}^1\times {\mathrm{8863}}^1$

素因数の和:8906

約数の個数: 48

約数和(自身を含む): 55311360

約数和(自身を除く): 35529144

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 31, 36, 62, 72, 93, 124, 186, 248, 279, 372, 558, 744, 1116, 2232, 8863, 17726, 26589, 35452, 53178, 70904, 79767, 106356, 159534, 212712, 274753, 319068, 549506, 638136, 824259, 1099012, 1648518, 2198024, 2472777, 3297036, 4945554, 6594072, 9891108, 19782216]

約数ペア:

[(1, 19782216), (2, 9891108), (3, 6594072), (4, 4945554), (6, 3297036), (8, 2472777), (9, 2198024), (12, 1648518), (18, 1099012), (24, 824259), (31, 638136), (36, 549506), (62, 319068), (72, 274753), (93, 212712), (124, 159534), (186, 106356), (248, 79767), (279, 70904), (372, 53178), (558, 35452), (744, 26589), (1116, 17726), (2232, 8863)]