19688788

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 44815680

約数和(自身を除く): 25126892

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 38, 49, 68, 76, 98, 119, 133, 196, 238, 266, 311, 323, 476, 532, 622, 646, 833, 931, 1244, 1292, 1666, 1862, 2177, 2261, 3332, 3724, 4354, 4522, 5287, 5909, 8708, 9044, 10574, 11818, 15239, 15827, 21148, 23636, 30478, 31654, 37009, 41363, 60956, 63308, 74018, 82726, 100453, 148036, 165452, 200906, 259063, 289541, 401812, 518126, 579082, 703171, 1036252, 1158164, 1406342, 2812684, 4922197, 9844394, 19688788]

約数ペア:

[(1, 19688788), (2, 9844394), (4, 4922197), (7, 2812684), (14, 1406342), (17, 1158164), (19, 1036252), (28, 703171), (34, 579082), (38, 518126), (49, 401812), (68, 289541), (76, 259063), (98, 200906), (119, 165452), (133, 148036), (196, 100453), (238, 82726), (266, 74018), (311, 63308), (323, 60956), (476, 41363), (532, 37009), (622, 31654), (646, 30478), (833, 23636), (931, 21148), (1244, 15827), (1292, 15239), (1666, 11818), (1862, 10574), (2177, 9044), (2261, 8708), (3332, 5909), (3724, 5287), (4354, 4522)]