20518864

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{75437}}^1$

素因数の和:75462

約数の個数: 20

約数和(自身を含む): 42094404

約数和(自身を除く): 21575540

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 75437, 150874, 301748, 603496, 1206992, 1282429, 2564858, 5129716, 10259432, 20518864]

約数ペア:

[(1, 20518864), (2, 10259432), (4, 5129716), (8, 2564858), (16, 1282429), (17, 1206992), (34, 603496), (68, 301748), (136, 150874), (272, 75437)]