About the Number
21028208712
2進数表記:10011100101011000010000000001001000
漢数字表記:二百十億二千八百二十万八千七百十二
素因数分解:
素因数の和:1476
約数の個数: 256
約数和(自身を含む): 64795852800
約数和(自身を除く): 43767644088
約数列:
[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 23, 24, 28, 42, 46, 47, 56, 69, 84, 89, 92, 94, 138, 141, 161, 168, 178, 184, 188, 267, 276, 282, 322, 329, 356, 376, 483, 534, 552, 564, 623, 644, 658, 712, 966, 987, 1068, 1081, 1128, 1246, 1288, 1301, 1316, 1869, 1932, 1974, 2047, 2136, 2162, 2492, 2602, 2632, 3243, 3738, 3864, 3903, 3948, 4094, 4183, 4324, 4984, 5204, 6141, 6486, 7476, 7567, 7806, 7896, 8188, 8366, 8648, 9107, 10408, 12282, 12549, 12972, 14329, 14952, 15134, 15612, 16376, 16732, 18214, 22701, 24564, 25098, 25944, 27321, 28658, 29281, 29923, 30268, 31224, 33464, 36428, 42987, 45402, 49128, 50196, 54642, 57316, 58562, 59846, 60536, 61147, 72856, 85974, 87843, 89769, 90804, 96209, 100392, 109284, 114632, 115789, 117124, 119692, 122294, 171948, 175686, 179538, 181608, 183441, 192418, 209461, 218568, 231578, 234248, 239384, 244588, 288627, 343896, 347367, 351372, 359076, 366882, 384836, 418922, 428029, 463156, 489176, 577254, 628383, 673463, 694734, 702744, 718152, 733764, 769672, 810523, 837844, 856058, 926312, 1154508, 1256766, 1284087, 1346926, 1389468, 1406381, 1467528, 1621046, 1675688, 1712116, 2020389, 2309016, 2431569, 2513532, 2568174, 2663147, 2693852, 2778936, 2812762, 3242092, 3424232, 4040778, 4219143, 4863138, 5027064, 5136348, 5326294, 5387704, 5442083, 5625524, 6484184, 7989441, 8081556, 8438286, 9726276, 9844667, 10272696, 10652588, 10884166, 11251048, 15978882, 16163112, 16326249, 16876572, 18642029, 19452552, 19689334, 21305176, 21768332, 29534001, 31957764, 32652498, 33753144, 37284058, 38094581, 39378668, 43536664, 55926087, 59068002, 63915528, 65304996, 74568116, 76189162, 78757336, 111852174, 114283743, 118136004, 125167909, 130609992, 149136232, 152378324, 223704348, 228567486, 236272008, 250335818, 304756648, 375503727, 447408696, 457134972, 500671636, 751007454, 876175363, 914269944, 1001343272, 1502014908, 1752350726, 2628526089, 3004029816, 3504701452, 5257052178, 7009402904, 10514104356, 21028208712]
約数ペア:
[(1, 21028208712), (2, 10514104356), (3, 7009402904), (4, 5257052178), (6, 3504701452), (7, 3004029816), (8, 2628526089), (12, 1752350726), (14, 1502014908), (21, 1001343272), (23, 914269944), (24, 876175363), (28, 751007454), (42, 500671636), (46, 457134972), (47, 447408696), (56, 375503727), (69, 304756648), (84, 250335818), (89, 236272008), (92, 228567486), (94, 223704348), (138, 152378324), (141, 149136232), (161, 130609992), (168, 125167909), (178, 118136004), (184, 114283743), (188, 111852174), (267, 78757336), (276, 76189162), (282, 74568116), (322, 65304996), (329, 63915528), (356, 59068002), (376, 55926087), (483, 43536664), (534, 39378668), (552, 38094581), (564, 37284058), (623, 33753144), (644, 32652498), (658, 31957764), (712, 29534001), (966, 21768332), (987, 21305176), (1068, 19689334), (1081, 19452552), (1128, 18642029), (1246, 16876572), (1288, 16326249), (1301, 16163112), (1316, 15978882), (1869, 11251048), (1932, 10884166), (1974, 10652588), (2047, 10272696), (2136, 9844667), (2162, 9726276), (2492, 8438286), (2602, 8081556), (2632, 7989441), (3243, 6484184), (3738, 5625524), (3864, 5442083), (3903, 5387704), (3948, 5326294), (4094, 5136348), (4183, 5027064), (4324, 4863138), (4984, 4219143), (5204, 4040778), (6141, 3424232), (6486, 3242092), (7476, 2812762), (7567, 2778936), (7806, 2693852), (7896, 2663147), (8188, 2568174), (8366, 2513532), (8648, 2431569), (9107, 2309016), (10408, 2020389), (12282, 1712116), (12549, 1675688), (12972, 1621046), (14329, 1467528), (14952, 1406381), (15134, 1389468), (15612, 1346926), (16376, 1284087), (16732, 1256766), (18214, 1154508), (22701, 926312), (24564, 856058), (25098, 837844), (25944, 810523), (27321, 769672), (28658, 733764), (29281, 718152), (29923, 702744), (30268, 694734), (31224, 673463), (33464, 628383), (36428, 577254), (42987, 489176), (45402, 463156), (49128, 428029), (50196, 418922), (54642, 384836), (57316, 366882), (58562, 359076), (59846, 351372), (60536, 347367), (61147, 343896), (72856, 288627), (85974, 244588), (87843, 239384), (89769, 234248), (90804, 231578), (96209, 218568), (100392, 209461), (109284, 192418), (114632, 183441), (115789, 181608), (117124, 179538), (119692, 175686), (122294, 171948)]このpageの処理時間: 0.04551219940185547 seconds