About the Number

28840689

28840688 ← → 28840690

2進数表記:1101110000001001011110001

漢数字表記:二千八百八十四万六百八十九

素因数分解:

3 2 × 19 1 × 23 1 × 7333 1

素因数の和:7381
約数の個数: 24
約数和(自身を含む): 45764160
約数和(自身を除く): 16923471

約数列:
[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3933, 7333, 21999, 65997, 139327, 168659, 417981, 505977, 1253943, 1517931, 3204521, 9613563, 28840689]

約数ペア:
[(1, 28840689), (3, 9613563), (9, 3204521), (19, 1517931), (23, 1253943), (57, 505977), (69, 417981), (171, 168659), (207, 139327), (437, 65997), (1311, 21999), (3933, 7333)]

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