About the Number

1994687541

1994687540 ← → 1994687542

2進数表記:1110110111001001000010000110101

漢数字表記:十九億九千四百六十八万七千五百四十一

素因数分解:

3 2 × 7 2 × 11 2 × 29 1 × 1289 1

素因数の和:1360
約数の個数: 108
約数和(自身を含む): 3814001100
約数和(自身を除く): 1819313559

約数列:
[1, 3, 7, 9, 11, 21, 29, 33, 49, 63, 77, 87, 99, 121, 147, 203, 231, 261, 319, 363, 441, 539, 609, 693, 847, 957, 1089, 1289, 1421, 1617, 1827, 2233, 2541, 2871, 3509, 3867, 4263, 4851, 5929, 6699, 7623, 9023, 10527, 11601, 12789, 14179, 15631, 17787, 20097, 24563, 27069, 31581, 37381, 42537, 46893, 53361, 63161, 73689, 81207, 99253, 112143, 127611, 140679, 155969, 171941, 189483, 221067, 261667, 297759, 336429, 411191, 467907, 515823, 568449, 694771, 785001, 893277, 1091783, 1233573, 1403721, 1547469, 1831669, 2084313, 2355003, 2878337, 3275349, 3700719, 4523101, 5495007, 6252939, 7642481, 8635011, 9826047, 13569303, 16485021, 20148359, 22927443, 25905033, 31661707, 40707909, 60445077, 68782329, 94985121, 181335231, 221631949, 284955363, 664895847, 1994687541]

約数ペア:
[(1, 1994687541), (3, 664895847), (7, 284955363), (9, 221631949), (11, 181335231), (21, 94985121), (29, 68782329), (33, 60445077), (49, 40707909), (63, 31661707), (77, 25905033), (87, 22927443), (99, 20148359), (121, 16485021), (147, 13569303), (203, 9826047), (231, 8635011), (261, 7642481), (319, 6252939), (363, 5495007), (441, 4523101), (539, 3700719), (609, 3275349), (693, 2878337), (847, 2355003), (957, 2084313), (1089, 1831669), (1289, 1547469), (1421, 1403721), (1617, 1233573), (1827, 1091783), (2233, 893277), (2541, 785001), (2871, 694771), (3509, 568449), (3867, 515823), (4263, 467907), (4851, 411191), (5929, 336429), (6699, 297759), (7623, 261667), (9023, 221067), (10527, 189483), (11601, 171941), (12789, 155969), (14179, 140679), (15631, 127611), (17787, 112143), (20097, 99253), (24563, 81207), (27069, 73689), (31581, 63161), (37381, 53361), (42537, 46893)]

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