18438876

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:283

約数の個数: 72

約数和(自身を含む): 48688640

約数和(自身を除く): 30249764

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 109, 111, 127, 148, 218, 222, 254, 327, 333, 381, 436, 444, 508, 654, 666, 762, 981, 1143, 1308, 1332, 1524, 1962, 2286, 3924, 4033, 4572, 4699, 8066, 9398, 12099, 13843, 14097, 16132, 18796, 24198, 27686, 28194, 36297, 41529, 42291, 48396, 55372, 56388, 72594, 83058, 84582, 124587, 145188, 166116, 169164, 249174, 498348, 512191, 1024382, 1536573, 2048764, 3073146, 4609719, 6146292, 9219438, 18438876]

約数ペア:

[(1, 18438876), (2, 9219438), (3, 6146292), (4, 4609719), (6, 3073146), (9, 2048764), (12, 1536573), (18, 1024382), (36, 512191), (37, 498348), (74, 249174), (109, 169164), (111, 166116), (127, 145188), (148, 124587), (218, 84582), (222, 83058), (254, 72594), (327, 56388), (333, 55372), (381, 48396), (436, 42291), (444, 41529), (508, 36297), (654, 28194), (666, 27686), (762, 24198), (981, 18796), (1143, 16132), (1308, 14097), (1332, 13843), (1524, 12099), (1962, 9398), (2286, 8066), (3924, 4699), (4033, 4572)]