About the Number

2121909888

2121909887 ← → 2121909889

2進数表記:1111110011110011100011010000000

漢数字表記:二十一億二千百九十万九千八百八十八

素因数分解:

2 7 × 3 1 × 7 1 × 61 1 × 12941 1

素因数の和:13026
約数の個数: 128
約数和(自身を含む): 6547616640
約数和(自身を除く): 4425706752

約数列:
[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 61, 64, 84, 96, 112, 122, 128, 168, 183, 192, 224, 244, 336, 366, 384, 427, 448, 488, 672, 732, 854, 896, 976, 1281, 1344, 1464, 1708, 1952, 2562, 2688, 2928, 3416, 3904, 5124, 5856, 6832, 7808, 10248, 11712, 12941, 13664, 20496, 23424, 25882, 27328, 38823, 40992, 51764, 54656, 77646, 81984, 90587, 103528, 155292, 163968, 181174, 207056, 271761, 310584, 362348, 414112, 543522, 621168, 724696, 789401, 828224, 1087044, 1242336, 1449392, 1578802, 1656448, 2174088, 2368203, 2484672, 2898784, 3157604, 4348176, 4736406, 4969344, 5525807, 5797568, 6315208, 8696352, 9472812, 11051614, 11595136, 12630416, 16577421, 17392704, 18945624, 22103228, 25260832, 33154842, 34785408, 37891248, 44206456, 50521664, 66309684, 75782496, 88412912, 101043328, 132619368, 151564992, 176825824, 265238736, 303129984, 353651648, 530477472, 707303296, 1060954944, 2121909888]

約数ペア:
[(1, 2121909888), (2, 1060954944), (3, 707303296), (4, 530477472), (6, 353651648), (7, 303129984), (8, 265238736), (12, 176825824), (14, 151564992), (16, 132619368), (21, 101043328), (24, 88412912), (28, 75782496), (32, 66309684), (42, 50521664), (48, 44206456), (56, 37891248), (61, 34785408), (64, 33154842), (84, 25260832), (96, 22103228), (112, 18945624), (122, 17392704), (128, 16577421), (168, 12630416), (183, 11595136), (192, 11051614), (224, 9472812), (244, 8696352), (336, 6315208), (366, 5797568), (384, 5525807), (427, 4969344), (448, 4736406), (488, 4348176), (672, 3157604), (732, 2898784), (854, 2484672), (896, 2368203), (976, 2174088), (1281, 1656448), (1344, 1578802), (1464, 1449392), (1708, 1242336), (1952, 1087044), (2562, 828224), (2688, 789401), (2928, 724696), (3416, 621168), (3904, 543522), (5124, 414112), (5856, 362348), (6832, 310584), (7808, 271761), (10248, 207056), (11712, 181174), (12941, 163968), (13664, 155292), (20496, 103528), (23424, 90587), (25882, 81984), (27328, 77646), (38823, 54656), (40992, 51764)]

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