About the Number

2021163921

2021163920 ← → 2021163922

2進数表記:1111000011110001000001110010001

漢数字表記:二十億二千百十六万三千九百二十一

素因数分解:

3 5 × 7 1 × 41 1 × 73 1 × 397 1

素因数の和:533
約数の個数: 96
約数和(自身を含む): 3602097408
約数和(自身を除く): 1580933487

約数列:
[1, 3, 7, 9, 21, 27, 41, 63, 73, 81, 123, 189, 219, 243, 287, 369, 397, 511, 567, 657, 861, 1107, 1191, 1533, 1701, 1971, 2583, 2779, 2993, 3321, 3573, 4599, 5913, 7749, 8337, 8979, 9963, 10719, 13797, 16277, 17739, 20951, 23247, 25011, 26937, 28981, 32157, 41391, 48831, 62853, 69741, 75033, 80811, 86943, 96471, 113939, 124173, 146493, 188559, 202867, 225099, 242433, 260829, 341817, 439479, 565677, 608601, 675297, 727299, 782487, 1025451, 1188221, 1318437, 1697031, 1825803, 2347461, 3076353, 3564663, 3955311, 5091093, 5477409, 7042383, 8317547, 9229059, 10693989, 16432227, 24952641, 27687177, 32081967, 49296681, 74857923, 96245901, 224573769, 288737703, 673721307, 2021163921]

約数ペア:
[(1, 2021163921), (3, 673721307), (7, 288737703), (9, 224573769), (21, 96245901), (27, 74857923), (41, 49296681), (63, 32081967), (73, 27687177), (81, 24952641), (123, 16432227), (189, 10693989), (219, 9229059), (243, 8317547), (287, 7042383), (369, 5477409), (397, 5091093), (511, 3955311), (567, 3564663), (657, 3076353), (861, 2347461), (1107, 1825803), (1191, 1697031), (1533, 1318437), (1701, 1188221), (1971, 1025451), (2583, 782487), (2779, 727299), (2993, 675297), (3321, 608601), (3573, 565677), (4599, 439479), (5913, 341817), (7749, 260829), (8337, 242433), (8979, 225099), (9963, 202867), (10719, 188559), (13797, 146493), (16277, 124173), (17739, 113939), (20951, 96471), (23247, 86943), (25011, 80811), (26937, 75033), (28981, 69741), (32157, 62853), (41391, 48831)]

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