About the Number

104815991

104815990 ← → 104815992

2進数表記:110001111110101110101110111

漢数字表記:一億四百八十一万五千九百九十一

素因数分解:

7 1 × 23 1 × 31 1 × 21001 1

素因数の和:21062
約数の個数: 16
約数和(自身を含む): 129036288
約数和(自身を除く): 24220297

約数列:
[1, 7, 23, 31, 161, 217, 713, 4991, 21001, 147007, 483023, 651031, 3381161, 4557217, 14973713, 104815991]

約数ペア:
[(1, 104815991), (7, 14973713), (23, 4557217), (31, 3381161), (161, 651031), (217, 483023), (713, 147007), (4991, 21001)]

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