About the Number

199972139

199972138 ← → 199972140

2進数表記:1011111010110101010100101011

漢数字表記:一億九千九百九十七万二千百三十九

素因数分解:

17 1 × 29 2 × 71 1 × 197 1

素因数の和:343
約数の個数: 24
約数和(自身を含む): 223505568
約数和(自身を除く): 23533429

約数列:
[1, 17, 29, 71, 197, 493, 841, 1207, 2059, 3349, 5713, 13987, 14297, 35003, 59711, 97121, 165677, 237779, 405623, 1015087, 2816509, 6895591, 11763067, 199972139]

約数ペア:
[(1, 199972139), (17, 11763067), (29, 6895591), (71, 2816509), (197, 1015087), (493, 405623), (841, 237779), (1207, 165677), (2059, 97121), (3349, 59711), (5713, 35003), (13987, 14297)]

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