21997440

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:114

約数の個数: 256

約数和(自身を含む): 83232000

約数和(自身を除く): 61234560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 32, 36, 38, 40, 45, 48, 54, 57, 60, 64, 67, 72, 76, 80, 90, 95, 96, 108, 114, 120, 128, 134, 135, 144, 152, 160, 171, 180, 190, 192, 201, 216, 228, 240, 268, 270, 285, 288, 304, 320, 335, 342, 360, 380, 384, 402, 432, 456, 480, 513, 536, 540, 570, 576, 603, 608, 640, 670, 684, 720, 760, 804, 855, 864, 912, 960, 1005, 1026, 1072, 1080, 1140, 1152, 1206, 1216, 1273, 1340, 1368, 1440, 1520, 1608, 1710, 1728, 1809, 1824, 1920, 2010, 2052, 2144, 2160, 2280, 2412, 2432, 2546, 2565, 2680, 2736, 2880, 3015, 3040, 3216, 3420, 3456, 3618, 3648, 3819, 4020, 4104, 4288, 4320, 4560, 4824, 5092, 5130, 5360, 5472, 5760, 6030, 6080, 6365, 6432, 6840, 7236, 7296, 7638, 8040, 8208, 8576, 8640, 9045, 9120, 9648, 10184, 10260, 10720, 10944, 11457, 12060, 12160, 12730, 12864, 13680, 14472, 15276, 16080, 16416, 17280, 18090, 18240, 19095, 19296, 20368, 20520, 21440, 21888, 22914, 24120, 25460, 25728, 27360, 28944, 30552, 32160, 32832, 34371, 36180, 36480, 38190, 38592, 40736, 41040, 42880, 45828, 48240, 50920, 54720, 57285, 57888, 61104, 64320, 65664, 68742, 72360, 76380, 77184, 81472, 82080, 91656, 96480, 101840, 109440, 114570, 115776, 122208, 128640, 137484, 144720, 152760, 162944, 164160, 171855, 183312, 192960, 203680, 229140, 231552, 244416, 274968, 289440, 305520, 328320, 343710, 366624, 385920, 407360, 458280, 488832, 549936, 578880, 611040, 687420, 733248, 814720, 916560, 1099872, 1157760, 1222080, 1374840, 1466496, 1833120, 2199744, 2444160, 2749680, 3666240, 4399488, 5499360, 7332480, 10998720, 21997440]

約数ペア:

[(1, 21997440), (2, 10998720), (3, 7332480), (4, 5499360), (5, 4399488), (6, 3666240), (8, 2749680), (9, 2444160), (10, 2199744), (12, 1833120), (15, 1466496), (16, 1374840), (18, 1222080), (19, 1157760), (20, 1099872), (24, 916560), (27, 814720), (30, 733248), (32, 687420), (36, 611040), (38, 578880), (40, 549936), (45, 488832), (48, 458280), (54, 407360), (57, 385920), (60, 366624), (64, 343710), (67, 328320), (72, 305520), (76, 289440), (80, 274968), (90, 244416), (95, 231552), (96, 229140), (108, 203680), (114, 192960), (120, 183312), (128, 171855), (134, 164160), (135, 162944), (144, 152760), (152, 144720), (160, 137484), (171, 128640), (180, 122208), (190, 115776), (192, 114570), (201, 109440), (216, 101840), (228, 96480), (240, 91656), (268, 82080), (270, 81472), (285, 77184), (288, 76380), (304, 72360), (320, 68742), (335, 65664), (342, 64320), (360, 61104), (380, 57888), (384, 57285), (402, 54720), (432, 50920), (456, 48240), (480, 45828), (513, 42880), (536, 41040), (540, 40736), (570, 38592), (576, 38190), (603, 36480), (608, 36180), (640, 34371), (670, 32832), (684, 32160), (720, 30552), (760, 28944), (804, 27360), (855, 25728), (864, 25460), (912, 24120), (960, 22914), (1005, 21888), (1026, 21440), (1072, 20520), (1080, 20368), (1140, 19296), (1152, 19095), (1206, 18240), (1216, 18090), (1273, 17280), (1340, 16416), (1368, 16080), (1440, 15276), (1520, 14472), (1608, 13680), (1710, 12864), (1728, 12730), (1809, 12160), (1824, 12060), (1920, 11457), (2010, 10944), (2052, 10720), (2144, 10260), (2160, 10184), (2280, 9648), (2412, 9120), (2432, 9045), (2546, 8640), (2565, 8576), (2680, 8208), (2736, 8040), (2880, 7638), (3015, 7296), (3040, 7236), (3216, 6840), (3420, 6432), (3456, 6365), (3618, 6080), (3648, 6030), (3819, 5760), (4020, 5472), (4104, 5360), (4288, 5130), (4320, 5092), (4560, 4824)]