19983152

素因数分解:

$2^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2663}}^1$

素因数の和:2745

約数の個数: 40

約数和(自身を含む): 44925696

約数和(自身を除く): 24942544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 67, 112, 134, 268, 469, 536, 938, 1072, 1876, 2663, 3752, 5326, 7504, 10652, 18641, 21304, 37282, 42608, 74564, 149128, 178421, 298256, 356842, 713684, 1248947, 1427368, 2497894, 2854736, 4995788, 9991576, 19983152]

約数ペア:

[(1, 19983152), (2, 9991576), (4, 4995788), (7, 2854736), (8, 2497894), (14, 1427368), (16, 1248947), (28, 713684), (56, 356842), (67, 298256), (112, 178421), (134, 149128), (268, 74564), (469, 42608), (536, 37282), (938, 21304), (1072, 18641), (1876, 10652), (2663, 7504), (3752, 5326)]