21237216

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1$

素因数の和:74

約数の個数: 288

約数和(自身を含む): 79688448

約数和(自身を除く): 58451232

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 13, 14, 16, 17, 21, 22, 24, 26, 28, 32, 33, 34, 39, 42, 44, 48, 51, 52, 56, 66, 68, 77, 78, 84, 88, 91, 96, 102, 104, 112, 119, 132, 136, 143, 154, 156, 168, 169, 176, 182, 187, 204, 208, 221, 224, 231, 238, 264, 272, 273, 286, 308, 312, 336, 338, 352, 357, 364, 374, 408, 416, 429, 442, 462, 476, 507, 528, 544, 546, 561, 572, 616, 624, 663, 672, 676, 714, 728, 748, 816, 858, 884, 924, 952, 1001, 1014, 1056, 1092, 1122, 1144, 1183, 1232, 1248, 1309, 1326, 1352, 1428, 1456, 1496, 1547, 1632, 1716, 1768, 1848, 1859, 1904, 2002, 2028, 2184, 2244, 2288, 2366, 2431, 2464, 2618, 2652, 2704, 2856, 2873, 2912, 2992, 3003, 3094, 3432, 3536, 3549, 3696, 3718, 3808, 3927, 4004, 4056, 4368, 4488, 4576, 4641, 4732, 4862, 5236, 5304, 5408, 5577, 5712, 5746, 5984, 6006, 6188, 6864, 7072, 7098, 7293, 7392, 7436, 7854, 8008, 8112, 8619, 8736, 8976, 9282, 9464, 9724, 10472, 10608, 11154, 11424, 11492, 12012, 12376, 13013, 13728, 14196, 14586, 14872, 15708, 16016, 16224, 17017, 17238, 17952, 18564, 18928, 19448, 20111, 20944, 21216, 22308, 22984, 24024, 24752, 26026, 28392, 29172, 29744, 31416, 31603, 32032, 34034, 34476, 37128, 37856, 38896, 39039, 40222, 41888, 44616, 45968, 48048, 49504, 51051, 52052, 56784, 58344, 59488, 60333, 62832, 63206, 68068, 68952, 74256, 77792, 78078, 80444, 89232, 91936, 94809, 96096, 102102, 104104, 113568, 116688, 120666, 125664, 126412, 136136, 137904, 148512, 156156, 160888, 178464, 189618, 204204, 208208, 221221, 233376, 241332, 252824, 272272, 275808, 312312, 321776, 379236, 408408, 416416, 442442, 482664, 505648, 544544, 624624, 643552, 663663, 758472, 816816, 884884, 965328, 1011296, 1249248, 1327326, 1516944, 1633632, 1769768, 1930656, 2654652, 3033888, 3539536, 5309304, 7079072, 10618608, 21237216]

約数ペア:

[(1, 21237216), (2, 10618608), (3, 7079072), (4, 5309304), (6, 3539536), (7, 3033888), (8, 2654652), (11, 1930656), (12, 1769768), (13, 1633632), (14, 1516944), (16, 1327326), (17, 1249248), (21, 1011296), (22, 965328), (24, 884884), (26, 816816), (28, 758472), (32, 663663), (33, 643552), (34, 624624), (39, 544544), (42, 505648), (44, 482664), (48, 442442), (51, 416416), (52, 408408), (56, 379236), (66, 321776), (68, 312312), (77, 275808), (78, 272272), (84, 252824), (88, 241332), (91, 233376), (96, 221221), (102, 208208), (104, 204204), (112, 189618), (119, 178464), (132, 160888), (136, 156156), (143, 148512), (154, 137904), (156, 136136), (168, 126412), (169, 125664), (176, 120666), (182, 116688), (187, 113568), (204, 104104), (208, 102102), (221, 96096), (224, 94809), (231, 91936), (238, 89232), (264, 80444), (272, 78078), (273, 77792), (286, 74256), (308, 68952), (312, 68068), (336, 63206), (338, 62832), (352, 60333), (357, 59488), (364, 58344), (374, 56784), (408, 52052), (416, 51051), (429, 49504), (442, 48048), (462, 45968), (476, 44616), (507, 41888), (528, 40222), (544, 39039), (546, 38896), (561, 37856), (572, 37128), (616, 34476), (624, 34034), (663, 32032), (672, 31603), (676, 31416), (714, 29744), (728, 29172), (748, 28392), (816, 26026), (858, 24752), (884, 24024), (924, 22984), (952, 22308), (1001, 21216), (1014, 20944), (1056, 20111), (1092, 19448), (1122, 18928), (1144, 18564), (1183, 17952), (1232, 17238), (1248, 17017), (1309, 16224), (1326, 16016), (1352, 15708), (1428, 14872), (1456, 14586), (1496, 14196), (1547, 13728), (1632, 13013), (1716, 12376), (1768, 12012), (1848, 11492), (1859, 11424), (1904, 11154), (2002, 10608), (2028, 10472), (2184, 9724), (2244, 9464), (2288, 9282), (2366, 8976), (2431, 8736), (2464, 8619), (2618, 8112), (2652, 8008), (2704, 7854), (2856, 7436), (2873, 7392), (2912, 7293), (2992, 7098), (3003, 7072), (3094, 6864), (3432, 6188), (3536, 6006), (3549, 5984), (3696, 5746), (3718, 5712), (3808, 5577), (3927, 5408), (4004, 5304), (4056, 5236), (4368, 4862), (4488, 4732), (4576, 4641)]