About the Number

21000948

21000947 ← → 21000949

2進数表記:1010000000111001011110100

漢数字表記:二千百万九百四十八

素因数分解:

2 2 × 3 1 × 71 1 × 157 2

素因数の和:392
約数の個数: 36
約数和(自身を含む): 50010912
約数和(自身を除く): 29009964

約数列:
[1, 2, 3, 4, 6, 12, 71, 142, 157, 213, 284, 314, 426, 471, 628, 852, 942, 1884, 11147, 22294, 24649, 33441, 44588, 49298, 66882, 73947, 98596, 133764, 147894, 295788, 1750079, 3500158, 5250237, 7000316, 10500474, 21000948]

約数ペア:
[(1, 21000948), (2, 10500474), (3, 7000316), (4, 5250237), (6, 3500158), (12, 1750079), (71, 295788), (142, 147894), (157, 133764), (213, 98596), (284, 73947), (314, 66882), (426, 49298), (471, 44588), (628, 33441), (852, 24649), (942, 22294), (1884, 11147)]

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