About the Number

21161604

21161603 ← → 21161605

2進数表記:1010000101110011010000100

漢数字表記:二千百十六万千六百四

素因数分解:

2 2 × 3 1 × 107 1 × 16481 1

素因数の和:16595
約数の個数: 24
約数和(自身を含む): 49841568
約数和(自身を除く): 28679964

約数列:
[1, 2, 3, 4, 6, 12, 107, 214, 321, 428, 642, 1284, 16481, 32962, 49443, 65924, 98886, 197772, 1763467, 3526934, 5290401, 7053868, 10580802, 21161604]

約数ペア:
[(1, 21161604), (2, 10580802), (3, 7053868), (4, 5290401), (6, 3526934), (12, 1763467), (107, 197772), (214, 98886), (321, 65924), (428, 49443), (642, 32962), (1284, 16481)]

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