About the Number

221211216

221211215 ← → 221211217

2進数表記:1101001011110110101001010000

漢数字表記:二億二千百二十一万千二百十六

素因数分解:

2 4 × 3 3 × 97 1 × 5279 1

素因数の和:5393
約数の個数: 80
約数和(自身を含む): 641625600
約数和(自身を除く): 420414384

約数列:
[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 97, 108, 144, 194, 216, 291, 388, 432, 582, 776, 873, 1164, 1552, 1746, 2328, 2619, 3492, 4656, 5238, 5279, 6984, 10476, 10558, 13968, 15837, 20952, 21116, 31674, 41904, 42232, 47511, 63348, 84464, 95022, 126696, 142533, 190044, 253392, 285066, 380088, 512063, 570132, 760176, 1024126, 1140264, 1536189, 2048252, 2280528, 3072378, 4096504, 4608567, 6144756, 8193008, 9217134, 12289512, 13825701, 18434268, 24579024, 27651402, 36868536, 55302804, 73737072, 110605608, 221211216]

約数ペア:
[(1, 221211216), (2, 110605608), (3, 73737072), (4, 55302804), (6, 36868536), (8, 27651402), (9, 24579024), (12, 18434268), (16, 13825701), (18, 12289512), (24, 9217134), (27, 8193008), (36, 6144756), (48, 4608567), (54, 4096504), (72, 3072378), (97, 2280528), (108, 2048252), (144, 1536189), (194, 1140264), (216, 1024126), (291, 760176), (388, 570132), (432, 512063), (582, 380088), (776, 285066), (873, 253392), (1164, 190044), (1552, 142533), (1746, 126696), (2328, 95022), (2619, 84464), (3492, 63348), (4656, 47511), (5238, 42232), (5279, 41904), (6984, 31674), (10476, 21116), (10558, 20952), (13968, 15837)]

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