About the Number

21640020

21640019 ← → 21640021

2進数表記:1010010100011001101010100

漢数字表記:二千百六十四万二十

素因数分解:

2 2 × 3 1 × 5 1 × 59 1 × 6113 1

素因数の和:6184
約数の個数: 48
約数和(自身を含む): 61629120
約数和(自身を除く): 39989100

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 59, 60, 118, 177, 236, 295, 354, 590, 708, 885, 1180, 1770, 3540, 6113, 12226, 18339, 24452, 30565, 36678, 61130, 73356, 91695, 122260, 183390, 360667, 366780, 721334, 1082001, 1442668, 1803335, 2164002, 3606670, 4328004, 5410005, 7213340, 10820010, 21640020]

約数ペア:
[(1, 21640020), (2, 10820010), (3, 7213340), (4, 5410005), (5, 4328004), (6, 3606670), (10, 2164002), (12, 1803335), (15, 1442668), (20, 1082001), (30, 721334), (59, 366780), (60, 360667), (118, 183390), (177, 122260), (236, 91695), (295, 73356), (354, 61130), (590, 36678), (708, 30565), (885, 24452), (1180, 18339), (1770, 12226), (3540, 6113)]

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