21010500

素因数分解:

$2^2\times 3^2\times 5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:84

約数の個数: 288

約数和(自身を含む): 81768960

約数和(自身を除く): 60758460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 25, 28, 29, 30, 35, 36, 42, 45, 46, 50, 58, 60, 63, 69, 70, 75, 84, 87, 90, 92, 100, 105, 115, 116, 125, 126, 138, 140, 145, 150, 161, 174, 175, 180, 203, 207, 210, 225, 230, 250, 252, 261, 276, 290, 300, 315, 322, 345, 348, 350, 375, 406, 414, 420, 435, 450, 460, 483, 500, 522, 525, 575, 580, 609, 630, 644, 667, 690, 700, 725, 750, 805, 812, 828, 870, 875, 900, 966, 1015, 1035, 1044, 1050, 1125, 1150, 1218, 1260, 1305, 1334, 1380, 1449, 1450, 1500, 1575, 1610, 1725, 1740, 1750, 1827, 1932, 2001, 2030, 2070, 2100, 2175, 2250, 2300, 2415, 2436, 2610, 2625, 2668, 2875, 2898, 2900, 3045, 3150, 3220, 3335, 3450, 3500, 3625, 3654, 4002, 4025, 4060, 4140, 4350, 4500, 4669, 4830, 5075, 5175, 5220, 5250, 5750, 5796, 6003, 6090, 6300, 6525, 6670, 6900, 7245, 7250, 7308, 7875, 8004, 8050, 8625, 8700, 9135, 9338, 9660, 10005, 10150, 10350, 10500, 10875, 11500, 12006, 12075, 12180, 13050, 13340, 14007, 14490, 14500, 15225, 15750, 16100, 16675, 17250, 18270, 18676, 20010, 20125, 20300, 20700, 21750, 23345, 24012, 24150, 25375, 25875, 26100, 28014, 28980, 30015, 30450, 31500, 32625, 33350, 34500, 36225, 36540, 40020, 40250, 42021, 43500, 45675, 46690, 48300, 50025, 50750, 51750, 56028, 60030, 60375, 60900, 65250, 66700, 70035, 72450, 76125, 80500, 83375, 84042, 91350, 93380, 100050, 101500, 103500, 116725, 120060, 120750, 130500, 140070, 144900, 150075, 152250, 166750, 168084, 181125, 182700, 200100, 210105, 228375, 233450, 241500, 250125, 280140, 300150, 304500, 333500, 350175, 362250, 420210, 456750, 466900, 500250, 583625, 600300, 700350, 724500, 750375, 840420, 913500, 1000500, 1050525, 1167250, 1400700, 1500750, 1750875, 2101050, 2334500, 3001500, 3501750, 4202100, 5252625, 7003500, 10505250, 21010500]

約数ペア:

[(1, 21010500), (2, 10505250), (3, 7003500), (4, 5252625), (5, 4202100), (6, 3501750), (7, 3001500), (9, 2334500), (10, 2101050), (12, 1750875), (14, 1500750), (15, 1400700), (18, 1167250), (20, 1050525), (21, 1000500), (23, 913500), (25, 840420), (28, 750375), (29, 724500), (30, 700350), (35, 600300), (36, 583625), (42, 500250), (45, 466900), (46, 456750), (50, 420210), (58, 362250), (60, 350175), (63, 333500), (69, 304500), (70, 300150), (75, 280140), (84, 250125), (87, 241500), (90, 233450), (92, 228375), (100, 210105), (105, 200100), (115, 182700), (116, 181125), (125, 168084), (126, 166750), (138, 152250), (140, 150075), (145, 144900), (150, 140070), (161, 130500), (174, 120750), (175, 120060), (180, 116725), (203, 103500), (207, 101500), (210, 100050), (225, 93380), (230, 91350), (250, 84042), (252, 83375), (261, 80500), (276, 76125), (290, 72450), (300, 70035), (315, 66700), (322, 65250), (345, 60900), (348, 60375), (350, 60030), (375, 56028), (406, 51750), (414, 50750), (420, 50025), (435, 48300), (450, 46690), (460, 45675), (483, 43500), (500, 42021), (522, 40250), (525, 40020), (575, 36540), (580, 36225), (609, 34500), (630, 33350), (644, 32625), (667, 31500), (690, 30450), (700, 30015), (725, 28980), (750, 28014), (805, 26100), (812, 25875), (828, 25375), (870, 24150), (875, 24012), (900, 23345), (966, 21750), (1015, 20700), (1035, 20300), (1044, 20125), (1050, 20010), (1125, 18676), (1150, 18270), (1218, 17250), (1260, 16675), (1305, 16100), (1334, 15750), (1380, 15225), (1449, 14500), (1450, 14490), (1500, 14007), (1575, 13340), (1610, 13050), (1725, 12180), (1740, 12075), (1750, 12006), (1827, 11500), (1932, 10875), (2001, 10500), (2030, 10350), (2070, 10150), (2100, 10005), (2175, 9660), (2250, 9338), (2300, 9135), (2415, 8700), (2436, 8625), (2610, 8050), (2625, 8004), (2668, 7875), (2875, 7308), (2898, 7250), (2900, 7245), (3045, 6900), (3150, 6670), (3220, 6525), (3335, 6300), (3450, 6090), (3500, 6003), (3625, 5796), (3654, 5750), (4002, 5250), (4025, 5220), (4060, 5175), (4140, 5075), (4350, 4830), (4500, 4669)]