About the Number

21315882

21315881 ← → 21315883

2進数表記:1010001010100000100101010

漢数字表記:二千百三十一万五千八百八十二

素因数分解:

2 1 × 3 1 × 7 2 × 72503 1

素因数の和:72522
約数の個数: 24
約数和(自身を含む): 49592736
約数和(自身を除く): 28276854

約数列:
[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 72503, 145006, 217509, 435018, 507521, 1015042, 1522563, 3045126, 3552647, 7105294, 10657941, 21315882]

約数ペア:
[(1, 21315882), (2, 10657941), (3, 7105294), (6, 3552647), (7, 3045126), (14, 1522563), (21, 1015042), (42, 507521), (49, 435018), (98, 217509), (147, 145006), (294, 72503)]

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