388632573

素因数分解:

$3^5\times 7^2\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:413

約数の個数: 72

約数和(自身を含む): 685181952

約数和(自身を除く): 296549379

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 127, 147, 189, 243, 257, 381, 441, 567, 771, 889, 1143, 1323, 1701, 1799, 2313, 2667, 3429, 3969, 5397, 6223, 6939, 8001, 10287, 11907, 12593, 16191, 18669, 20817, 24003, 30861, 32639, 37779, 48573, 56007, 62451, 72009, 97917, 113337, 145719, 168021, 216027, 228473, 293751, 340011, 437157, 504063, 685419, 881253, 1020033, 1512189, 1599311, 2056257, 2643759, 3060099, 4797933, 6168771, 7931277, 14393799, 18506313, 43181397, 55518939, 129544191, 388632573]

約数ペア:

[(1, 388632573), (3, 129544191), (7, 55518939), (9, 43181397), (21, 18506313), (27, 14393799), (49, 7931277), (63, 6168771), (81, 4797933), (127, 3060099), (147, 2643759), (189, 2056257), (243, 1599311), (257, 1512189), (381, 1020033), (441, 881253), (567, 685419), (771, 504063), (889, 437157), (1143, 340011), (1323, 293751), (1701, 228473), (1799, 216027), (2313, 168021), (2667, 145719), (3429, 113337), (3969, 97917), (5397, 72009), (6223, 62451), (6939, 56007), (8001, 48573), (10287, 37779), (11907, 32639), (12593, 30861), (16191, 24003), (18669, 20817)]