About the Number

131001213

131001212 ← → 131001214

2進数表記:111110011101110101101111101

漢数字表記:一億三千百万千二百十三

素因数分解:

3 1 × 7 1 × 53 1 × 117701 1

素因数の和:117764
約数の個数: 16
約数和(自身を含む): 203389056
約数和(自身を除く): 72387843

約数列:
[1, 3, 7, 21, 53, 159, 371, 1113, 117701, 353103, 823907, 2471721, 6238153, 18714459, 43667071, 131001213]

約数ペア:
[(1, 131001213), (3, 43667071), (7, 18714459), (21, 6238153), (53, 2471721), (159, 823907), (371, 353103), (1113, 117701)]

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