19319384

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 43338240

約数和(自身を除く): 24018856

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 71, 86, 113, 142, 172, 226, 284, 301, 344, 452, 497, 568, 602, 791, 904, 994, 1204, 1582, 1988, 2408, 3053, 3164, 3976, 4859, 6106, 6328, 8023, 9718, 12212, 16046, 19436, 21371, 24424, 32092, 34013, 38872, 42742, 56161, 64184, 68026, 85484, 112322, 136052, 170968, 224644, 272104, 344989, 449288, 689978, 1379956, 2414923, 2759912, 4829846, 9659692, 19319384]

約数ペア:

[(1, 19319384), (2, 9659692), (4, 4829846), (7, 2759912), (8, 2414923), (14, 1379956), (28, 689978), (43, 449288), (56, 344989), (71, 272104), (86, 224644), (113, 170968), (142, 136052), (172, 112322), (226, 85484), (284, 68026), (301, 64184), (344, 56161), (452, 42742), (497, 38872), (568, 34013), (602, 32092), (791, 24424), (904, 21371), (994, 19436), (1204, 16046), (1582, 12212), (1988, 9718), (2408, 8023), (3053, 6328), (3164, 6106), (3976, 4859)]