About the Number

21390744

21390743 ← → 21390745

2進数表記:1010001100110010110011000

漢数字表記:二千百三十九万七百四十四

素因数分解:

2 3 × 3 1 × 31 1 × 28751 1

素因数の和:28791
約数の個数: 32
約数和(自身を含む): 55203840
約数和(自身を除く): 33813096

約数列:
[1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 124, 186, 248, 372, 744, 28751, 57502, 86253, 115004, 172506, 230008, 345012, 690024, 891281, 1782562, 2673843, 3565124, 5347686, 7130248, 10695372, 21390744]

約数ペア:
[(1, 21390744), (2, 10695372), (3, 7130248), (4, 5347686), (6, 3565124), (8, 2673843), (12, 1782562), (24, 891281), (31, 690024), (62, 345012), (93, 230008), (124, 172506), (186, 115004), (248, 86253), (372, 57502), (744, 28751)]

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