About the Number

30971421

30971420 ← → 30971422

2進数表記:1110110001001011000011101

漢数字表記:三千九十七万千四百二十一

素因数分解:

3 2 × 13 1 × 97 1 × 2729 1

素因数の和:2845
約数の個数: 24
約数和(自身を含む): 48692280
約数和(自身を除く): 17720859

約数列:
[1, 3, 9, 13, 39, 97, 117, 291, 873, 1261, 2729, 3783, 8187, 11349, 24561, 35477, 106431, 264713, 319293, 794139, 2382417, 3441269, 10323807, 30971421]

約数ペア:
[(1, 30971421), (3, 10323807), (9, 3441269), (13, 2382417), (39, 794139), (97, 319293), (117, 264713), (291, 106431), (873, 35477), (1261, 24561), (2729, 11349), (3783, 8187)]

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