About the Number

2019390021

2019390020 ← → 2019390022

2進数表記:1111000010111010111001001000101

漢数字表記:二十億千九百三十九万二十一

素因数分解:

3 5 × 11 1 × 73 1 × 79 1 × 131 1

素因数の和:309
約数の個数: 96
約数和(自身を含む): 3413329920
約数和(自身を除く): 1393939899

約数列:
[1, 3, 9, 11, 27, 33, 73, 79, 81, 99, 131, 219, 237, 243, 297, 393, 657, 711, 803, 869, 891, 1179, 1441, 1971, 2133, 2409, 2607, 2673, 3537, 4323, 5767, 5913, 6399, 7227, 7821, 9563, 10349, 10611, 12969, 17301, 17739, 19197, 21681, 23463, 28689, 31047, 31833, 38907, 51903, 63437, 65043, 70389, 86067, 93141, 105193, 113839, 116721, 155709, 190311, 195129, 211167, 258201, 279423, 315579, 341517, 350163, 467127, 570933, 755477, 774603, 838269, 946737, 1024551, 1401381, 1712799, 2266431, 2323809, 2514807, 2840211, 3073653, 5138397, 6799293, 8310247, 8520633, 9220959, 15415191, 20397879, 24930741, 25561899, 27662877, 61193637, 74792223, 183580911, 224376669, 673130007, 2019390021]

約数ペア:
[(1, 2019390021), (3, 673130007), (9, 224376669), (11, 183580911), (27, 74792223), (33, 61193637), (73, 27662877), (79, 25561899), (81, 24930741), (99, 20397879), (131, 15415191), (219, 9220959), (237, 8520633), (243, 8310247), (297, 6799293), (393, 5138397), (657, 3073653), (711, 2840211), (803, 2514807), (869, 2323809), (891, 2266431), (1179, 1712799), (1441, 1401381), (1971, 1024551), (2133, 946737), (2409, 838269), (2607, 774603), (2673, 755477), (3537, 570933), (4323, 467127), (5767, 350163), (5913, 341517), (6399, 315579), (7227, 279423), (7821, 258201), (9563, 211167), (10349, 195129), (10611, 190311), (12969, 155709), (17301, 116721), (17739, 113839), (19197, 105193), (21681, 93141), (23463, 86067), (28689, 70389), (31047, 65043), (31833, 63437), (38907, 51903)]

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