About the Number

21208704

21208703 ← → 21208705

2進数表記:1010000111001111010000000

漢数字表記:二千百二十万八千七百四

素因数分解:

2 7 × 3 1 × 11 1 × 5021 1

素因数の和:5049
約数の個数: 64
約数和(自身を含む): 61469280
約数和(自身を除く): 40260576

約数列:
[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 64, 66, 88, 96, 128, 132, 176, 192, 264, 352, 384, 528, 704, 1056, 1408, 2112, 4224, 5021, 10042, 15063, 20084, 30126, 40168, 55231, 60252, 80336, 110462, 120504, 160672, 165693, 220924, 241008, 321344, 331386, 441848, 482016, 642688, 662772, 883696, 964032, 1325544, 1767392, 1928064, 2651088, 3534784, 5302176, 7069568, 10604352, 21208704]

約数ペア:
[(1, 21208704), (2, 10604352), (3, 7069568), (4, 5302176), (6, 3534784), (8, 2651088), (11, 1928064), (12, 1767392), (16, 1325544), (22, 964032), (24, 883696), (32, 662772), (33, 642688), (44, 482016), (48, 441848), (64, 331386), (66, 321344), (88, 241008), (96, 220924), (128, 165693), (132, 160672), (176, 120504), (192, 110462), (264, 80336), (352, 60252), (384, 55231), (528, 40168), (704, 30126), (1056, 20084), (1408, 15063), (2112, 10042), (4224, 5021)]

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