21942720

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:443

約数の個数: 168

約数和(自身を含む): 79644240

約数和(自身を除く): 57701520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 64, 72, 76, 80, 90, 95, 96, 114, 120, 144, 152, 160, 171, 180, 190, 192, 228, 240, 285, 288, 304, 320, 342, 360, 380, 401, 456, 480, 570, 576, 608, 684, 720, 760, 802, 855, 912, 960, 1140, 1203, 1216, 1368, 1440, 1520, 1604, 1710, 1824, 2005, 2280, 2406, 2736, 2880, 3040, 3208, 3420, 3609, 3648, 4010, 4560, 4812, 5472, 6015, 6080, 6416, 6840, 7218, 7619, 8020, 9120, 9624, 10944, 12030, 12832, 13680, 14436, 15238, 16040, 18045, 18240, 19248, 22857, 24060, 25664, 27360, 28872, 30476, 32080, 36090, 38095, 38496, 45714, 48120, 54720, 57744, 60952, 64160, 68571, 72180, 76190, 76992, 91428, 96240, 114285, 115488, 121904, 128320, 137142, 144360, 152380, 182856, 192480, 228570, 230976, 243808, 274284, 288720, 304760, 342855, 365712, 384960, 457140, 487616, 548568, 577440, 609520, 685710, 731424, 914280, 1097136, 1154880, 1219040, 1371420, 1462848, 1828560, 2194272, 2438080, 2742840, 3657120, 4388544, 5485680, 7314240, 10971360, 21942720]

約数ペア:

[(1, 21942720), (2, 10971360), (3, 7314240), (4, 5485680), (5, 4388544), (6, 3657120), (8, 2742840), (9, 2438080), (10, 2194272), (12, 1828560), (15, 1462848), (16, 1371420), (18, 1219040), (19, 1154880), (20, 1097136), (24, 914280), (30, 731424), (32, 685710), (36, 609520), (38, 577440), (40, 548568), (45, 487616), (48, 457140), (57, 384960), (60, 365712), (64, 342855), (72, 304760), (76, 288720), (80, 274284), (90, 243808), (95, 230976), (96, 228570), (114, 192480), (120, 182856), (144, 152380), (152, 144360), (160, 137142), (171, 128320), (180, 121904), (190, 115488), (192, 114285), (228, 96240), (240, 91428), (285, 76992), (288, 76190), (304, 72180), (320, 68571), (342, 64160), (360, 60952), (380, 57744), (401, 54720), (456, 48120), (480, 45714), (570, 38496), (576, 38095), (608, 36090), (684, 32080), (720, 30476), (760, 28872), (802, 27360), (855, 25664), (912, 24060), (960, 22857), (1140, 19248), (1203, 18240), (1216, 18045), (1368, 16040), (1440, 15238), (1520, 14436), (1604, 13680), (1710, 12832), (1824, 12030), (2005, 10944), (2280, 9624), (2406, 9120), (2736, 8020), (2880, 7619), (3040, 7218), (3208, 6840), (3420, 6416), (3609, 6080), (3648, 6015), (4010, 5472), (4560, 4812)]