21087360

素因数分解:

$2^7\times 3^2\times 5^1\times 7^1\times {\mathrm{523}}^1$

素因数の和:555

約数の個数: 192

約数和(自身を含む): 83378880

約数和(自身を除く): 62291520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 523, 560, 576, 630, 640, 672, 720, 840, 896, 960, 1008, 1046, 1120, 1152, 1260, 1344, 1440, 1569, 1680, 1920, 2016, 2092, 2240, 2520, 2615, 2688, 2880, 3138, 3360, 3661, 4032, 4184, 4480, 4707, 5040, 5230, 5760, 6276, 6720, 7322, 7845, 8064, 8368, 9414, 10080, 10460, 10983, 12552, 13440, 14644, 15690, 16736, 18305, 18828, 20160, 20920, 21966, 23535, 25104, 29288, 31380, 32949, 33472, 36610, 37656, 40320, 41840, 43932, 47070, 50208, 54915, 58576, 62760, 65898, 66944, 73220, 75312, 83680, 87864, 94140, 100416, 109830, 117152, 125520, 131796, 146440, 150624, 164745, 167360, 175728, 188280, 200832, 219660, 234304, 251040, 263592, 292880, 301248, 329490, 334720, 351456, 376560, 439320, 468608, 502080, 527184, 585760, 602496, 658980, 702912, 753120, 878640, 1004160, 1054368, 1171520, 1317960, 1405824, 1506240, 1757280, 2108736, 2343040, 2635920, 3012480, 3514560, 4217472, 5271840, 7029120, 10543680, 21087360]

約数ペア:

[(1, 21087360), (2, 10543680), (3, 7029120), (4, 5271840), (5, 4217472), (6, 3514560), (7, 3012480), (8, 2635920), (9, 2343040), (10, 2108736), (12, 1757280), (14, 1506240), (15, 1405824), (16, 1317960), (18, 1171520), (20, 1054368), (21, 1004160), (24, 878640), (28, 753120), (30, 702912), (32, 658980), (35, 602496), (36, 585760), (40, 527184), (42, 502080), (45, 468608), (48, 439320), (56, 376560), (60, 351456), (63, 334720), (64, 329490), (70, 301248), (72, 292880), (80, 263592), (84, 251040), (90, 234304), (96, 219660), (105, 200832), (112, 188280), (120, 175728), (126, 167360), (128, 164745), (140, 150624), (144, 146440), (160, 131796), (168, 125520), (180, 117152), (192, 109830), (210, 100416), (224, 94140), (240, 87864), (252, 83680), (280, 75312), (288, 73220), (315, 66944), (320, 65898), (336, 62760), (360, 58576), (384, 54915), (420, 50208), (448, 47070), (480, 43932), (504, 41840), (523, 40320), (560, 37656), (576, 36610), (630, 33472), (640, 32949), (672, 31380), (720, 29288), (840, 25104), (896, 23535), (960, 21966), (1008, 20920), (1046, 20160), (1120, 18828), (1152, 18305), (1260, 16736), (1344, 15690), (1440, 14644), (1569, 13440), (1680, 12552), (1920, 10983), (2016, 10460), (2092, 10080), (2240, 9414), (2520, 8368), (2615, 8064), (2688, 7845), (2880, 7322), (3138, 6720), (3360, 6276), (3661, 5760), (4032, 5230), (4184, 5040), (4480, 4707)]