21416405920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{20717}}^1$

素因数の和:20823

約数の個数: 192

約数和(自身を含む): 63152441856

約数和(自身を除く): 41736035936

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 71, 80, 91, 104, 112, 130, 140, 142, 160, 182, 208, 224, 260, 280, 284, 355, 364, 416, 455, 497, 520, 560, 568, 710, 728, 910, 923, 994, 1040, 1120, 1136, 1420, 1456, 1820, 1846, 1988, 2080, 2272, 2485, 2840, 2912, 3640, 3692, 3976, 4615, 4970, 5680, 6461, 7280, 7384, 7952, 9230, 9940, 11360, 12922, 14560, 14768, 15904, 18460, 19880, 20717, 25844, 29536, 32305, 36920, 39760, 41434, 51688, 64610, 73840, 79520, 82868, 103376, 103585, 129220, 145019, 147680, 165736, 206752, 207170, 258440, 269321, 290038, 331472, 414340, 516880, 538642, 580076, 662944, 725095, 828680, 1033760, 1077284, 1160152, 1346605, 1450190, 1470907, 1657360, 1885247, 2154568, 2320304, 2693210, 2900380, 2941814, 3314720, 3770494, 4309136, 4640608, 5386420, 5800760, 5883628, 7354535, 7540988, 8618272, 9426235, 10296349, 10772840, 11601520, 11767256, 14709070, 15081976, 18852470, 19121791, 20592698, 21545680, 23203040, 23534512, 29418140, 30163952, 37704940, 38243582, 41185396, 43091360, 47069024, 51481745, 58836280, 60327904, 75409880, 76487164, 82370792, 95608955, 102963490, 117672560, 133852537, 150819760, 152974328, 164741584, 191217910, 205926980, 235345120, 267705074, 301639520, 305948656, 329483168, 382435820, 411853960, 535410148, 611897312, 669262685, 764871640, 823707920, 1070820296, 1338525370, 1529743280, 1647415840, 2141640592, 2677050740, 3059486560, 4283281184, 5354101480, 10708202960, 21416405920]

約数ペア:

[(1, 21416405920), (2, 10708202960), (4, 5354101480), (5, 4283281184), (7, 3059486560), (8, 2677050740), (10, 2141640592), (13, 1647415840), (14, 1529743280), (16, 1338525370), (20, 1070820296), (26, 823707920), (28, 764871640), (32, 669262685), (35, 611897312), (40, 535410148), (52, 411853960), (56, 382435820), (65, 329483168), (70, 305948656), (71, 301639520), (80, 267705074), (91, 235345120), (104, 205926980), (112, 191217910), (130, 164741584), (140, 152974328), (142, 150819760), (160, 133852537), (182, 117672560), (208, 102963490), (224, 95608955), (260, 82370792), (280, 76487164), (284, 75409880), (355, 60327904), (364, 58836280), (416, 51481745), (455, 47069024), (497, 43091360), (520, 41185396), (560, 38243582), (568, 37704940), (710, 30163952), (728, 29418140), (910, 23534512), (923, 23203040), (994, 21545680), (1040, 20592698), (1120, 19121791), (1136, 18852470), (1420, 15081976), (1456, 14709070), (1820, 11767256), (1846, 11601520), (1988, 10772840), (2080, 10296349), (2272, 9426235), (2485, 8618272), (2840, 7540988), (2912, 7354535), (3640, 5883628), (3692, 5800760), (3976, 5386420), (4615, 4640608), (4970, 4309136), (5680, 3770494), (6461, 3314720), (7280, 2941814), (7384, 2900380), (7952, 2693210), (9230, 2320304), (9940, 2154568), (11360, 1885247), (12922, 1657360), (14560, 1470907), (14768, 1450190), (15904, 1346605), (18460, 1160152), (19880, 1077284), (20717, 1033760), (25844, 828680), (29536, 725095), (32305, 662944), (36920, 580076), (39760, 538642), (41434, 516880), (51688, 414340), (64610, 331472), (73840, 290038), (79520, 269321), (82868, 258440), (103376, 207170), (103585, 206752), (129220, 165736), (145019, 147680)]