20834992

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{541}}^1$

素因数の和:661

約数の個数: 40

約数和(自身を含む): 42341040

約数和(自身を除く): 21506048

約数列:

[1, 2, 4, 8, 16, 29, 58, 83, 116, 166, 232, 332, 464, 541, 664, 1082, 1328, 2164, 2407, 4328, 4814, 8656, 9628, 15689, 19256, 31378, 38512, 44903, 62756, 89806, 125512, 179612, 251024, 359224, 718448, 1302187, 2604374, 5208748, 10417496, 20834992]

約数ペア:

[(1, 20834992), (2, 10417496), (4, 5208748), (8, 2604374), (16, 1302187), (29, 718448), (58, 359224), (83, 251024), (116, 179612), (166, 125512), (232, 89806), (332, 62756), (464, 44903), (541, 38512), (664, 31378), (1082, 19256), (1328, 15689), (2164, 9628), (2407, 8656), (4328, 4814)]