About the Number

137421808

137421807 ← → 137421809

2進数表記:1000001100001110001111110000

漢数字表記:一億三千七百四十二万千八百八

素因数分解:

2 4 × 43 1 × 199741 1

素因数の和:199792
約数の個数: 20
約数和(自身を含む): 272448088
約数和(自身を除く): 135026280

約数列:
[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 199741, 399482, 798964, 1597928, 3195856, 8588863, 17177726, 34355452, 68710904, 137421808]

約数ペア:
[(1, 137421808), (2, 68710904), (4, 34355452), (8, 17177726), (16, 8588863), (43, 3195856), (86, 1597928), (172, 798964), (344, 399482), (688, 199741)]

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