About the Number

21270840

21270839 ← → 21270841

2進数表記:1010001001001000100111000

漢数字表記:二千百二十七万八百四十

素因数分解:

2 3 × 3 1 × 5 1 × 177257 1

素因数の和:177271
約数の個数: 32
約数和(自身を含む): 63812880
約数和(自身を除く): 42542040

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 177257, 354514, 531771, 709028, 886285, 1063542, 1418056, 1772570, 2127084, 2658855, 3545140, 4254168, 5317710, 7090280, 10635420, 21270840]

約数ペア:
[(1, 21270840), (2, 10635420), (3, 7090280), (4, 5317710), (5, 4254168), (6, 3545140), (8, 2658855), (10, 2127084), (12, 1772570), (15, 1418056), (20, 1063542), (24, 886285), (30, 709028), (40, 531771), (60, 354514), (120, 177257)]

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