21376080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2699}}^1$

素因数の和:2729

約数の個数: 120

約数和(自身を含む): 78343200

約数和(自身を除く): 56967120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 2699, 3960, 5398, 7920, 8097, 10796, 13495, 16194, 21592, 24291, 26990, 29689, 32388, 40485, 43184, 48582, 53980, 59378, 64776, 80970, 89067, 97164, 107960, 118756, 121455, 129552, 148445, 161940, 178134, 194328, 215920, 237512, 242910, 267201, 296890, 323880, 356268, 388656, 445335, 475024, 485820, 534402, 593780, 647760, 712536, 890670, 971640, 1068804, 1187560, 1336005, 1425072, 1781340, 1943280, 2137608, 2375120, 2672010, 3562680, 4275216, 5344020, 7125360, 10688040, 21376080]

約数ペア:

[(1, 21376080), (2, 10688040), (3, 7125360), (4, 5344020), (5, 4275216), (6, 3562680), (8, 2672010), (9, 2375120), (10, 2137608), (11, 1943280), (12, 1781340), (15, 1425072), (16, 1336005), (18, 1187560), (20, 1068804), (22, 971640), (24, 890670), (30, 712536), (33, 647760), (36, 593780), (40, 534402), (44, 485820), (45, 475024), (48, 445335), (55, 388656), (60, 356268), (66, 323880), (72, 296890), (80, 267201), (88, 242910), (90, 237512), (99, 215920), (110, 194328), (120, 178134), (132, 161940), (144, 148445), (165, 129552), (176, 121455), (180, 118756), (198, 107960), (220, 97164), (240, 89067), (264, 80970), (330, 64776), (360, 59378), (396, 53980), (440, 48582), (495, 43184), (528, 40485), (660, 32388), (720, 29689), (792, 26990), (880, 24291), (990, 21592), (1320, 16194), (1584, 13495), (1980, 10796), (2640, 8097), (2699, 7920), (3960, 5398)]