About the Number

21739928

21739927 ← → 21739929

2進数表記:1010010111011100110011000

漢数字表記:二千百七十三万九千九百二十八

素因数分解:

2 3 × 7 2 × 31 1 × 1789 1

素因数の和:1840
約数の個数: 48
約数和(自身を含む): 48974400
約数和(自身を除く): 27234472

約数列:
[1, 2, 4, 7, 8, 14, 28, 31, 49, 56, 62, 98, 124, 196, 217, 248, 392, 434, 868, 1519, 1736, 1789, 3038, 3578, 6076, 7156, 12152, 12523, 14312, 25046, 50092, 55459, 87661, 100184, 110918, 175322, 221836, 350644, 388213, 443672, 701288, 776426, 1552852, 2717491, 3105704, 5434982, 10869964, 21739928]

約数ペア:
[(1, 21739928), (2, 10869964), (4, 5434982), (7, 3105704), (8, 2717491), (14, 1552852), (28, 776426), (31, 701288), (49, 443672), (56, 388213), (62, 350644), (98, 221836), (124, 175322), (196, 110918), (217, 100184), (248, 87661), (392, 55459), (434, 50092), (868, 25046), (1519, 14312), (1736, 12523), (1789, 12152), (3038, 7156), (3578, 6076)]

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