About the Number

2121065278

2121065277 ← → 2121065279

2進数表記:1111110011011001110001100111110

漢数字表記:二十一億二千百六万五千二百七十八

素因数分解:

2 1 × 29 1 × 131 2 × 2131 1

素因数の和:2424
約数の個数: 24
約数和(自身を含む): 3318180840
約数和(自身を除く): 1197115562

約数列:
[1, 2, 29, 58, 131, 262, 2131, 3799, 4262, 7598, 17161, 34322, 61799, 123598, 279161, 497669, 558322, 995338, 8095669, 16191338, 36570091, 73140182, 1060532639, 2121065278]

約数ペア:
[(1, 2121065278), (2, 1060532639), (29, 73140182), (58, 36570091), (131, 16191338), (262, 8095669), (2131, 995338), (3799, 558322), (4262, 497669), (7598, 279161), (17161, 123598), (34322, 61799)]

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