21174720

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:187

約数の個数: 224

約数和(自身を含む): 80759808

約数和(自身を除く): 59585088

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 32, 35, 40, 42, 46, 48, 56, 60, 64, 69, 70, 80, 84, 92, 96, 105, 112, 115, 120, 137, 138, 140, 160, 161, 168, 184, 192, 210, 224, 230, 240, 274, 276, 280, 320, 322, 336, 345, 368, 411, 420, 448, 460, 480, 483, 548, 552, 560, 644, 672, 685, 690, 736, 805, 822, 840, 920, 959, 960, 966, 1096, 1104, 1120, 1288, 1344, 1370, 1380, 1472, 1610, 1644, 1680, 1840, 1918, 1932, 2055, 2192, 2208, 2240, 2415, 2576, 2740, 2760, 2877, 3151, 3220, 3288, 3360, 3680, 3836, 3864, 4110, 4384, 4416, 4795, 4830, 5152, 5480, 5520, 5754, 6302, 6440, 6576, 6720, 7360, 7672, 7728, 8220, 8768, 9453, 9590, 9660, 10304, 10960, 11040, 11508, 12604, 12880, 13152, 14385, 15344, 15456, 15755, 16440, 18906, 19180, 19320, 21920, 22057, 22080, 23016, 25208, 25760, 26304, 28770, 30688, 30912, 31510, 32880, 37812, 38360, 38640, 43840, 44114, 46032, 47265, 50416, 51520, 57540, 61376, 63020, 65760, 66171, 75624, 76720, 77280, 88228, 92064, 94530, 100832, 110285, 115080, 126040, 131520, 132342, 151248, 153440, 154560, 176456, 184128, 189060, 201664, 220570, 230160, 252080, 264684, 302496, 306880, 330855, 352912, 378120, 441140, 460320, 504160, 529368, 604992, 661710, 705824, 756240, 882280, 920640, 1008320, 1058736, 1323420, 1411648, 1512480, 1764560, 2117472, 2646840, 3024960, 3529120, 4234944, 5293680, 7058240, 10587360, 21174720]

約数ペア:

[(1, 21174720), (2, 10587360), (3, 7058240), (4, 5293680), (5, 4234944), (6, 3529120), (7, 3024960), (8, 2646840), (10, 2117472), (12, 1764560), (14, 1512480), (15, 1411648), (16, 1323420), (20, 1058736), (21, 1008320), (23, 920640), (24, 882280), (28, 756240), (30, 705824), (32, 661710), (35, 604992), (40, 529368), (42, 504160), (46, 460320), (48, 441140), (56, 378120), (60, 352912), (64, 330855), (69, 306880), (70, 302496), (80, 264684), (84, 252080), (92, 230160), (96, 220570), (105, 201664), (112, 189060), (115, 184128), (120, 176456), (137, 154560), (138, 153440), (140, 151248), (160, 132342), (161, 131520), (168, 126040), (184, 115080), (192, 110285), (210, 100832), (224, 94530), (230, 92064), (240, 88228), (274, 77280), (276, 76720), (280, 75624), (320, 66171), (322, 65760), (336, 63020), (345, 61376), (368, 57540), (411, 51520), (420, 50416), (448, 47265), (460, 46032), (480, 44114), (483, 43840), (548, 38640), (552, 38360), (560, 37812), (644, 32880), (672, 31510), (685, 30912), (690, 30688), (736, 28770), (805, 26304), (822, 25760), (840, 25208), (920, 23016), (959, 22080), (960, 22057), (966, 21920), (1096, 19320), (1104, 19180), (1120, 18906), (1288, 16440), (1344, 15755), (1370, 15456), (1380, 15344), (1472, 14385), (1610, 13152), (1644, 12880), (1680, 12604), (1840, 11508), (1918, 11040), (1932, 10960), (2055, 10304), (2192, 9660), (2208, 9590), (2240, 9453), (2415, 8768), (2576, 8220), (2740, 7728), (2760, 7672), (2877, 7360), (3151, 6720), (3220, 6576), (3288, 6440), (3360, 6302), (3680, 5754), (3836, 5520), (3864, 5480), (4110, 5152), (4384, 4830), (4416, 4795)]