2149642719

素因数分解:

$3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{547}}^1$

素因数の和:834

約数の個数: 80

約数和(自身を含む): 3819340800

約数和(自身を除く): 1669698081

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 81, 87, 189, 203, 239, 261, 547, 567, 609, 717, 783, 1641, 1673, 1827, 2151, 2349, 3829, 4923, 5019, 5481, 6453, 6931, 11487, 14769, 15057, 15863, 16443, 19359, 20793, 34461, 44307, 45171, 47589, 48517, 62379, 103383, 111041, 130733, 135513, 142767, 145551, 187137, 310149, 333123, 392199, 428301, 436653, 561411, 915131, 999369, 1176597, 1284903, 1309959, 2745393, 2998107, 3529791, 3791257, 3929877, 8236179, 8994321, 10589373, 11373771, 24708537, 26538799, 34121313, 74125611, 79616397, 102363939, 238849191, 307091817, 716547573, 2149642719]

約数ペア:

[(1, 2149642719), (3, 716547573), (7, 307091817), (9, 238849191), (21, 102363939), (27, 79616397), (29, 74125611), (63, 34121313), (81, 26538799), (87, 24708537), (189, 11373771), (203, 10589373), (239, 8994321), (261, 8236179), (547, 3929877), (567, 3791257), (609, 3529791), (717, 2998107), (783, 2745393), (1641, 1309959), (1673, 1284903), (1827, 1176597), (2151, 999369), (2349, 915131), (3829, 561411), (4923, 436653), (5019, 428301), (5481, 392199), (6453, 333123), (6931, 310149), (11487, 187137), (14769, 145551), (15057, 142767), (15863, 135513), (16443, 130733), (19359, 111041), (20793, 103383), (34461, 62379), (44307, 48517), (45171, 47589)]