20839864

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{2089}}^1$

素因数の和:2167

約数の個数: 32

約数和(自身を含む): 41382000

約数和(自身を除く): 20542136

約数列:

[1, 2, 4, 8, 29, 43, 58, 86, 116, 172, 232, 344, 1247, 2089, 2494, 4178, 4988, 8356, 9976, 16712, 60581, 89827, 121162, 179654, 242324, 359308, 484648, 718616, 2604983, 5209966, 10419932, 20839864]

約数ペア:

[(1, 20839864), (2, 10419932), (4, 5209966), (8, 2604983), (29, 718616), (43, 484648), (58, 359308), (86, 242324), (116, 179654), (172, 121162), (232, 89827), (344, 60581), (1247, 16712), (2089, 9976), (2494, 8356), (4178, 4988)]