21151680

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2003}}^1$

素因数の和:2034

約数の個数: 112

約数和(自身を含む): 73298304

約数和(自身を除く): 52146624

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 80, 88, 96, 110, 120, 132, 160, 165, 176, 192, 220, 240, 264, 320, 330, 352, 440, 480, 528, 660, 704, 880, 960, 1056, 1320, 1760, 2003, 2112, 2640, 3520, 4006, 5280, 6009, 8012, 10015, 10560, 12018, 16024, 20030, 22033, 24036, 30045, 32048, 40060, 44066, 48072, 60090, 64096, 66099, 80120, 88132, 96144, 110165, 120180, 128192, 132198, 160240, 176264, 192288, 220330, 240360, 264396, 320480, 330495, 352528, 384576, 440660, 480720, 528792, 640960, 660990, 705056, 881320, 961440, 1057584, 1321980, 1410112, 1762640, 1922880, 2115168, 2643960, 3525280, 4230336, 5287920, 7050560, 10575840, 21151680]

約数ペア:

[(1, 21151680), (2, 10575840), (3, 7050560), (4, 5287920), (5, 4230336), (6, 3525280), (8, 2643960), (10, 2115168), (11, 1922880), (12, 1762640), (15, 1410112), (16, 1321980), (20, 1057584), (22, 961440), (24, 881320), (30, 705056), (32, 660990), (33, 640960), (40, 528792), (44, 480720), (48, 440660), (55, 384576), (60, 352528), (64, 330495), (66, 320480), (80, 264396), (88, 240360), (96, 220330), (110, 192288), (120, 176264), (132, 160240), (160, 132198), (165, 128192), (176, 120180), (192, 110165), (220, 96144), (240, 88132), (264, 80120), (320, 66099), (330, 64096), (352, 60090), (440, 48072), (480, 44066), (528, 40060), (660, 32048), (704, 30045), (880, 24036), (960, 22033), (1056, 20030), (1320, 16024), (1760, 12018), (2003, 10560), (2112, 10015), (2640, 8012), (3520, 6009), (4006, 5280)]