20211912

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{337}}^1$

素因数の和:380

約数の個数: 144

約数和(自身を含む): 67623660

約数和(自身を除く): 47411748

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 17, 18, 21, 24, 28, 34, 36, 42, 49, 51, 56, 63, 68, 72, 84, 98, 102, 119, 126, 136, 147, 153, 168, 196, 204, 238, 252, 294, 306, 337, 357, 392, 408, 441, 476, 504, 588, 612, 674, 714, 833, 882, 952, 1011, 1071, 1176, 1224, 1348, 1428, 1666, 1764, 2022, 2142, 2359, 2499, 2696, 2856, 3033, 3332, 3528, 4044, 4284, 4718, 4998, 5729, 6066, 6664, 7077, 7497, 8088, 8568, 9436, 9996, 11458, 12132, 14154, 14994, 16513, 17187, 18872, 19992, 21231, 22916, 24264, 28308, 29988, 33026, 34374, 40103, 42462, 45832, 49539, 51561, 56616, 59976, 66052, 68748, 80206, 84924, 99078, 103122, 120309, 132104, 137496, 148617, 160412, 169848, 198156, 206244, 240618, 280721, 297234, 320824, 360927, 396312, 412488, 481236, 561442, 594468, 721854, 842163, 962472, 1122884, 1188936, 1443708, 1684326, 2245768, 2526489, 2887416, 3368652, 5052978, 6737304, 10105956, 20211912]

約数ペア:

[(1, 20211912), (2, 10105956), (3, 6737304), (4, 5052978), (6, 3368652), (7, 2887416), (8, 2526489), (9, 2245768), (12, 1684326), (14, 1443708), (17, 1188936), (18, 1122884), (21, 962472), (24, 842163), (28, 721854), (34, 594468), (36, 561442), (42, 481236), (49, 412488), (51, 396312), (56, 360927), (63, 320824), (68, 297234), (72, 280721), (84, 240618), (98, 206244), (102, 198156), (119, 169848), (126, 160412), (136, 148617), (147, 137496), (153, 132104), (168, 120309), (196, 103122), (204, 99078), (238, 84924), (252, 80206), (294, 68748), (306, 66052), (337, 59976), (357, 56616), (392, 51561), (408, 49539), (441, 45832), (476, 42462), (504, 40103), (588, 34374), (612, 33026), (674, 29988), (714, 28308), (833, 24264), (882, 22916), (952, 21231), (1011, 19992), (1071, 18872), (1176, 17187), (1224, 16513), (1348, 14994), (1428, 14154), (1666, 12132), (1764, 11458), (2022, 9996), (2142, 9436), (2359, 8568), (2499, 8088), (2696, 7497), (2856, 7077), (3033, 6664), (3332, 6066), (3528, 5729), (4044, 4998), (4284, 4718)]