21105000

素因数分解:

$2^3\times 3^2\times 5^4\times 7^1\times {\mathrm{67}}^1$

素因数の和:106

約数の個数: 240

約数和(自身を含む): 82848480

約数和(自身を除く): 61743480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 50, 56, 60, 63, 67, 70, 72, 75, 84, 90, 100, 105, 120, 125, 126, 134, 140, 150, 168, 175, 180, 200, 201, 210, 225, 250, 252, 268, 280, 300, 315, 335, 350, 360, 375, 402, 420, 450, 469, 500, 504, 525, 536, 600, 603, 625, 630, 670, 700, 750, 804, 840, 875, 900, 938, 1000, 1005, 1050, 1125, 1206, 1250, 1260, 1340, 1400, 1407, 1500, 1575, 1608, 1675, 1750, 1800, 1875, 1876, 2010, 2100, 2250, 2345, 2412, 2500, 2520, 2625, 2680, 2814, 3000, 3015, 3150, 3350, 3500, 3750, 3752, 4020, 4200, 4221, 4375, 4500, 4690, 4824, 5000, 5025, 5250, 5625, 5628, 6030, 6300, 6700, 7000, 7035, 7500, 7875, 8040, 8375, 8442, 8750, 9000, 9380, 10050, 10500, 11250, 11256, 11725, 12060, 12600, 13125, 13400, 14070, 15000, 15075, 15750, 16750, 16884, 17500, 18760, 20100, 21000, 21105, 22500, 23450, 24120, 25125, 26250, 28140, 30150, 31500, 33500, 33768, 35000, 35175, 39375, 40200, 41875, 42210, 45000, 46900, 50250, 52500, 56280, 58625, 60300, 63000, 67000, 70350, 75375, 78750, 83750, 84420, 93800, 100500, 105000, 105525, 117250, 120600, 125625, 140700, 150750, 157500, 167500, 168840, 175875, 201000, 211050, 234500, 251250, 281400, 293125, 301500, 315000, 335000, 351750, 376875, 422100, 469000, 502500, 527625, 586250, 603000, 703500, 753750, 844200, 879375, 1005000, 1055250, 1172500, 1407000, 1507500, 1758750, 2110500, 2345000, 2638125, 3015000, 3517500, 4221000, 5276250, 7035000, 10552500, 21105000]

約数ペア:

[(1, 21105000), (2, 10552500), (3, 7035000), (4, 5276250), (5, 4221000), (6, 3517500), (7, 3015000), (8, 2638125), (9, 2345000), (10, 2110500), (12, 1758750), (14, 1507500), (15, 1407000), (18, 1172500), (20, 1055250), (21, 1005000), (24, 879375), (25, 844200), (28, 753750), (30, 703500), (35, 603000), (36, 586250), (40, 527625), (42, 502500), (45, 469000), (50, 422100), (56, 376875), (60, 351750), (63, 335000), (67, 315000), (70, 301500), (72, 293125), (75, 281400), (84, 251250), (90, 234500), (100, 211050), (105, 201000), (120, 175875), (125, 168840), (126, 167500), (134, 157500), (140, 150750), (150, 140700), (168, 125625), (175, 120600), (180, 117250), (200, 105525), (201, 105000), (210, 100500), (225, 93800), (250, 84420), (252, 83750), (268, 78750), (280, 75375), (300, 70350), (315, 67000), (335, 63000), (350, 60300), (360, 58625), (375, 56280), (402, 52500), (420, 50250), (450, 46900), (469, 45000), (500, 42210), (504, 41875), (525, 40200), (536, 39375), (600, 35175), (603, 35000), (625, 33768), (630, 33500), (670, 31500), (700, 30150), (750, 28140), (804, 26250), (840, 25125), (875, 24120), (900, 23450), (938, 22500), (1000, 21105), (1005, 21000), (1050, 20100), (1125, 18760), (1206, 17500), (1250, 16884), (1260, 16750), (1340, 15750), (1400, 15075), (1407, 15000), (1500, 14070), (1575, 13400), (1608, 13125), (1675, 12600), (1750, 12060), (1800, 11725), (1875, 11256), (1876, 11250), (2010, 10500), (2100, 10050), (2250, 9380), (2345, 9000), (2412, 8750), (2500, 8442), (2520, 8375), (2625, 8040), (2680, 7875), (2814, 7500), (3000, 7035), (3015, 7000), (3150, 6700), (3350, 6300), (3500, 6030), (3750, 5628), (3752, 5625), (4020, 5250), (4200, 5025), (4221, 5000), (4375, 4824), (4500, 4690)]