About the Number

20090997

20090996 ← → 20090998

2進数表記:1001100101001000001110101

漢数字表記:二千九万九百九十七

素因数分解:

3 5 × 29 1 × 2851 1

素因数の和:2895
約数の個数: 24
約数和(自身を含む): 31143840
約数和(自身を除く): 11052843

約数列:
[1, 3, 9, 27, 29, 81, 87, 243, 261, 783, 2349, 2851, 7047, 8553, 25659, 76977, 82679, 230931, 248037, 692793, 744111, 2232333, 6696999, 20090997]

約数ペア:
[(1, 20090997), (3, 6696999), (9, 2232333), (27, 744111), (29, 692793), (81, 248037), (87, 230931), (243, 82679), (261, 76977), (783, 25659), (2349, 8553), (2851, 7047)]

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