18999848

素因数分解:

$2^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2551}}^1$

素因数の和:2590

約数の個数: 48

約数和(自身を含む): 43639200

約数和(自身を除く): 24639352

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 49, 56, 76, 98, 133, 152, 196, 266, 392, 532, 931, 1064, 1862, 2551, 3724, 5102, 7448, 10204, 17857, 20408, 35714, 48469, 71428, 96938, 124999, 142856, 193876, 249998, 339283, 387752, 499996, 678566, 999992, 1357132, 2374981, 2714264, 4749962, 9499924, 18999848]

約数ペア:

[(1, 18999848), (2, 9499924), (4, 4749962), (7, 2714264), (8, 2374981), (14, 1357132), (19, 999992), (28, 678566), (38, 499996), (49, 387752), (56, 339283), (76, 249998), (98, 193876), (133, 142856), (152, 124999), (196, 96938), (266, 71428), (392, 48469), (532, 35714), (931, 20408), (1064, 17857), (1862, 10204), (2551, 7448), (3724, 5102)]