About the Number

27993988

27993987 ← → 27993989

2進数表記:1101010110010011110000100

漢数字表記:二千七百九十九万三千九百八十八

素因数分解:

2 2 × 11 1 × 349 1 × 1823 1

素因数の和:2187
約数の個数: 24
約数和(自身を含む): 53625600
約数和(自身を除く): 25631612

約数列:
[1, 2, 4, 11, 22, 44, 349, 698, 1396, 1823, 3646, 3839, 7292, 7678, 15356, 20053, 40106, 80212, 636227, 1272454, 2544908, 6998497, 13996994, 27993988]

約数ペア:
[(1, 27993988), (2, 13996994), (4, 6998497), (11, 2544908), (22, 1272454), (44, 636227), (349, 80212), (698, 40106), (1396, 20053), (1823, 15356), (3646, 7678), (3839, 7292)]

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