21355249272

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{991}}^1$

素因数の和:1226

約数の個数: 256

約数和(自身を含む): 66205286400

約数和(自身を除く): 44850037128

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 19, 21, 24, 28, 38, 42, 43, 56, 57, 76, 84, 86, 114, 129, 133, 152, 157, 168, 172, 228, 258, 266, 301, 314, 344, 399, 456, 471, 516, 532, 602, 628, 798, 817, 903, 942, 991, 1032, 1064, 1099, 1204, 1256, 1596, 1634, 1806, 1884, 1982, 2198, 2408, 2451, 2973, 2983, 3192, 3268, 3297, 3612, 3768, 3964, 4396, 4902, 5719, 5946, 5966, 6536, 6594, 6751, 6937, 7224, 7928, 8792, 8949, 9804, 11438, 11892, 11932, 13188, 13502, 13874, 17157, 17898, 18829, 19608, 20253, 20811, 20881, 22876, 23784, 23864, 26376, 27004, 27748, 34314, 35796, 37658, 40506, 41622, 41762, 42613, 45752, 47257, 54008, 55496, 56487, 62643, 68628, 71592, 75316, 81012, 83244, 83524, 85226, 94514, 112974, 125286, 127839, 128269, 131803, 137256, 141771, 150632, 155587, 162024, 166488, 167048, 170452, 189028, 225948, 250572, 255678, 256538, 263606, 283542, 298291, 311174, 340904, 378056, 384807, 395409, 451896, 466761, 501144, 511356, 513076, 527212, 567084, 596582, 622348, 769614, 790818, 809647, 894873, 897883, 933522, 1022712, 1026152, 1054424, 1089109, 1134168, 1193164, 1244696, 1539228, 1581636, 1619294, 1789746, 1795766, 1867044, 2178218, 2386328, 2428941, 2693649, 2956153, 3078456, 3163272, 3238588, 3267327, 3579492, 3591532, 3734088, 4356436, 4857882, 5387298, 5667529, 5912306, 6477176, 6534654, 6690241, 7158984, 7183064, 8712872, 8868459, 9715764, 10774596, 11335058, 11824612, 13069308, 13380482, 17002587, 17736918, 19431528, 20070723, 20693071, 21549192, 22670116, 23649224, 26138616, 26760964, 34005174, 35473836, 40141446, 41386142, 45340232, 46831687, 53521928, 62079213, 68010348, 70947672, 80282892, 82772284, 93663374, 124158426, 127114579, 136020696, 140495061, 160565784, 165544568, 187326748, 248316852, 254229158, 280990122, 374653496, 381343737, 496633704, 508458316, 561980244, 762687474, 889802053, 1016916632, 1123960488, 1525374948, 1779604106, 2669406159, 3050749896, 3559208212, 5338812318, 7118416424, 10677624636, 21355249272]

約数ペア:

[(1, 21355249272), (2, 10677624636), (3, 7118416424), (4, 5338812318), (6, 3559208212), (7, 3050749896), (8, 2669406159), (12, 1779604106), (14, 1525374948), (19, 1123960488), (21, 1016916632), (24, 889802053), (28, 762687474), (38, 561980244), (42, 508458316), (43, 496633704), (56, 381343737), (57, 374653496), (76, 280990122), (84, 254229158), (86, 248316852), (114, 187326748), (129, 165544568), (133, 160565784), (152, 140495061), (157, 136020696), (168, 127114579), (172, 124158426), (228, 93663374), (258, 82772284), (266, 80282892), (301, 70947672), (314, 68010348), (344, 62079213), (399, 53521928), (456, 46831687), (471, 45340232), (516, 41386142), (532, 40141446), (602, 35473836), (628, 34005174), (798, 26760964), (817, 26138616), (903, 23649224), (942, 22670116), (991, 21549192), (1032, 20693071), (1064, 20070723), (1099, 19431528), (1204, 17736918), (1256, 17002587), (1596, 13380482), (1634, 13069308), (1806, 11824612), (1884, 11335058), (1982, 10774596), (2198, 9715764), (2408, 8868459), (2451, 8712872), (2973, 7183064), (2983, 7158984), (3192, 6690241), (3268, 6534654), (3297, 6477176), (3612, 5912306), (3768, 5667529), (3964, 5387298), (4396, 4857882), (4902, 4356436), (5719, 3734088), (5946, 3591532), (5966, 3579492), (6536, 3267327), (6594, 3238588), (6751, 3163272), (6937, 3078456), (7224, 2956153), (7928, 2693649), (8792, 2428941), (8949, 2386328), (9804, 2178218), (11438, 1867044), (11892, 1795766), (11932, 1789746), (13188, 1619294), (13502, 1581636), (13874, 1539228), (17157, 1244696), (17898, 1193164), (18829, 1134168), (19608, 1089109), (20253, 1054424), (20811, 1026152), (20881, 1022712), (22876, 933522), (23784, 897883), (23864, 894873), (26376, 809647), (27004, 790818), (27748, 769614), (34314, 622348), (35796, 596582), (37658, 567084), (40506, 527212), (41622, 513076), (41762, 511356), (42613, 501144), (45752, 466761), (47257, 451896), (54008, 395409), (55496, 384807), (56487, 378056), (62643, 340904), (68628, 311174), (71592, 298291), (75316, 283542), (81012, 263606), (83244, 256538), (83524, 255678), (85226, 250572), (94514, 225948), (112974, 189028), (125286, 170452), (127839, 167048), (128269, 166488), (131803, 162024), (137256, 155587), (141771, 150632)]