19718136

素因数分解:

$2^3\times 3^2\times {\mathrm{137}}^1\times {\mathrm{1999}}^1$

素因数の和:2148

約数の個数: 48

約数和(自身を含む): 53820000

約数和(自身を除く): 34101864

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 137, 274, 411, 548, 822, 1096, 1233, 1644, 1999, 2466, 3288, 3998, 4932, 5997, 7996, 9864, 11994, 15992, 17991, 23988, 35982, 47976, 71964, 143928, 273863, 547726, 821589, 1095452, 1643178, 2190904, 2464767, 3286356, 4929534, 6572712, 9859068, 19718136]

約数ペア:

[(1, 19718136), (2, 9859068), (3, 6572712), (4, 4929534), (6, 3286356), (8, 2464767), (9, 2190904), (12, 1643178), (18, 1095452), (24, 821589), (36, 547726), (72, 273863), (137, 143928), (274, 71964), (411, 47976), (548, 35982), (822, 23988), (1096, 17991), (1233, 15992), (1644, 11994), (1999, 9864), (2466, 7996), (3288, 5997), (3998, 4932)]