About the Number

21395968

21395967 ← → 21395969

2進数表記:1010001100111101000000000

漢数字表記:二千百三十九万五千九百六十八

素因数分解:

2 9 × 11 1 × 29 1 × 131 1

素因数の和:189
約数の個数: 80
約数和(自身を含む): 48612960
約数和(自身を除く): 27216992

約数列:
[1, 2, 4, 8, 11, 16, 22, 29, 32, 44, 58, 64, 88, 116, 128, 131, 176, 232, 256, 262, 319, 352, 464, 512, 524, 638, 704, 928, 1048, 1276, 1408, 1441, 1856, 2096, 2552, 2816, 2882, 3712, 3799, 4192, 5104, 5632, 5764, 7424, 7598, 8384, 10208, 11528, 14848, 15196, 16768, 20416, 23056, 30392, 33536, 40832, 41789, 46112, 60784, 67072, 81664, 83578, 92224, 121568, 163328, 167156, 184448, 243136, 334312, 368896, 486272, 668624, 737792, 972544, 1337248, 1945088, 2674496, 5348992, 10697984, 21395968]

約数ペア:
[(1, 21395968), (2, 10697984), (4, 5348992), (8, 2674496), (11, 1945088), (16, 1337248), (22, 972544), (29, 737792), (32, 668624), (44, 486272), (58, 368896), (64, 334312), (88, 243136), (116, 184448), (128, 167156), (131, 163328), (176, 121568), (232, 92224), (256, 83578), (262, 81664), (319, 67072), (352, 60784), (464, 46112), (512, 41789), (524, 40832), (638, 33536), (704, 30392), (928, 23056), (1048, 20416), (1276, 16768), (1408, 15196), (1441, 14848), (1856, 11528), (2096, 10208), (2552, 8384), (2816, 7598), (2882, 7424), (3712, 5764), (3799, 5632), (4192, 5104)]

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