21941920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1$

素因数の和:183

約数の個数: 192

約数和(自身を含む): 70108416

約数和(自身を除く): 48166496

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 32, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 91, 104, 110, 112, 130, 137, 140, 143, 154, 160, 176, 182, 208, 220, 224, 260, 274, 280, 286, 308, 352, 364, 385, 416, 440, 455, 520, 548, 560, 572, 616, 685, 715, 728, 770, 880, 910, 959, 1001, 1040, 1096, 1120, 1144, 1232, 1370, 1430, 1456, 1507, 1540, 1760, 1781, 1820, 1918, 2002, 2080, 2192, 2288, 2464, 2740, 2860, 2912, 3014, 3080, 3562, 3640, 3836, 4004, 4384, 4576, 4795, 5005, 5480, 5720, 6028, 6160, 7124, 7280, 7535, 7672, 8008, 8905, 9590, 10010, 10549, 10960, 11440, 12056, 12320, 12467, 14248, 14560, 15070, 15344, 16016, 17810, 19180, 19591, 20020, 21098, 21920, 22880, 24112, 24934, 28496, 30140, 30688, 32032, 35620, 38360, 39182, 40040, 42196, 48224, 49868, 52745, 56992, 60280, 62335, 71240, 76720, 78364, 80080, 84392, 97955, 99736, 105490, 120560, 124670, 137137, 142480, 153440, 156728, 160160, 168784, 195910, 199472, 210980, 241120, 249340, 274274, 284960, 313456, 337568, 391820, 398944, 421960, 498680, 548548, 626912, 685685, 783640, 843920, 997360, 1097096, 1371370, 1567280, 1687840, 1994720, 2194192, 2742740, 3134560, 4388384, 5485480, 10970960, 21941920]

約数ペア:

[(1, 21941920), (2, 10970960), (4, 5485480), (5, 4388384), (7, 3134560), (8, 2742740), (10, 2194192), (11, 1994720), (13, 1687840), (14, 1567280), (16, 1371370), (20, 1097096), (22, 997360), (26, 843920), (28, 783640), (32, 685685), (35, 626912), (40, 548548), (44, 498680), (52, 421960), (55, 398944), (56, 391820), (65, 337568), (70, 313456), (77, 284960), (80, 274274), (88, 249340), (91, 241120), (104, 210980), (110, 199472), (112, 195910), (130, 168784), (137, 160160), (140, 156728), (143, 153440), (154, 142480), (160, 137137), (176, 124670), (182, 120560), (208, 105490), (220, 99736), (224, 97955), (260, 84392), (274, 80080), (280, 78364), (286, 76720), (308, 71240), (352, 62335), (364, 60280), (385, 56992), (416, 52745), (440, 49868), (455, 48224), (520, 42196), (548, 40040), (560, 39182), (572, 38360), (616, 35620), (685, 32032), (715, 30688), (728, 30140), (770, 28496), (880, 24934), (910, 24112), (959, 22880), (1001, 21920), (1040, 21098), (1096, 20020), (1120, 19591), (1144, 19180), (1232, 17810), (1370, 16016), (1430, 15344), (1456, 15070), (1507, 14560), (1540, 14248), (1760, 12467), (1781, 12320), (1820, 12056), (1918, 11440), (2002, 10960), (2080, 10549), (2192, 10010), (2288, 9590), (2464, 8905), (2740, 8008), (2860, 7672), (2912, 7535), (3014, 7280), (3080, 7124), (3562, 6160), (3640, 6028), (3836, 5720), (4004, 5480), (4384, 5005), (4576, 4795)]