About the Number

148931991

148931990 ← → 148931992

2進数表記:1000111000001000010110010111

漢数字表記:一億四千八百九十三万千九百九十一

素因数分解:

3 2 × 13 1 × 311 1 × 4093 1

素因数の和:4423
約数の個数: 24
約数和(自身を含む): 232473696
約数和(自身を除く): 83541705

約数列:
[1, 3, 9, 13, 39, 117, 311, 933, 2799, 4043, 4093, 12129, 12279, 36387, 36837, 53209, 159627, 478881, 1272923, 3818769, 11456307, 16547999, 49643997, 148931991]

約数ペア:
[(1, 148931991), (3, 49643997), (9, 16547999), (13, 11456307), (39, 3818769), (117, 1272923), (311, 478881), (933, 159627), (2799, 53209), (4043, 36837), (4093, 36387), (12129, 12279)]

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