About the Number

21479808

21479807 ← → 21479809

2進数表記:1010001111100000110000000

漢数字表記:二千百四十七万九千八百八

素因数分解:

2 7 × 3 1 × 7 1 × 61 1 × 131 1

素因数の和:216
約数の個数: 128
約数和(自身を含む): 66781440
約数和(自身を除く): 45301632

約数列:
[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 61, 64, 84, 96, 112, 122, 128, 131, 168, 183, 192, 224, 244, 262, 336, 366, 384, 393, 427, 448, 488, 524, 672, 732, 786, 854, 896, 917, 976, 1048, 1281, 1344, 1464, 1572, 1708, 1834, 1952, 2096, 2562, 2688, 2751, 2928, 3144, 3416, 3668, 3904, 4192, 5124, 5502, 5856, 6288, 6832, 7336, 7808, 7991, 8384, 10248, 11004, 11712, 12576, 13664, 14672, 15982, 16768, 20496, 22008, 23424, 23973, 25152, 27328, 29344, 31964, 40992, 44016, 47946, 50304, 54656, 55937, 58688, 63928, 81984, 88032, 95892, 111874, 117376, 127856, 163968, 167811, 176064, 191784, 223748, 255712, 335622, 352128, 383568, 447496, 511424, 671244, 767136, 894992, 1022848, 1342488, 1534272, 1789984, 2684976, 3068544, 3579968, 5369952, 7159936, 10739904, 21479808]

約数ペア:
[(1, 21479808), (2, 10739904), (3, 7159936), (4, 5369952), (6, 3579968), (7, 3068544), (8, 2684976), (12, 1789984), (14, 1534272), (16, 1342488), (21, 1022848), (24, 894992), (28, 767136), (32, 671244), (42, 511424), (48, 447496), (56, 383568), (61, 352128), (64, 335622), (84, 255712), (96, 223748), (112, 191784), (122, 176064), (128, 167811), (131, 163968), (168, 127856), (183, 117376), (192, 111874), (224, 95892), (244, 88032), (262, 81984), (336, 63928), (366, 58688), (384, 55937), (393, 54656), (427, 50304), (448, 47946), (488, 44016), (524, 40992), (672, 31964), (732, 29344), (786, 27328), (854, 25152), (896, 23973), (917, 23424), (976, 22008), (1048, 20496), (1281, 16768), (1344, 15982), (1464, 14672), (1572, 13664), (1708, 12576), (1834, 11712), (1952, 11004), (2096, 10248), (2562, 8384), (2688, 7991), (2751, 7808), (2928, 7336), (3144, 6832), (3416, 6288), (3668, 5856), (3904, 5502), (4192, 5124)]

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