26987212

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{20507}}^1$

素因数の和:20565

約数の個数: 24

約数和(自身を含む): 55125504

約数和(自身を除く): 28138292

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 20507, 41014, 82028, 143549, 287098, 574196, 963829, 1927658, 3855316, 6746803, 13493606, 26987212]

約数ペア:

[(1, 26987212), (2, 13493606), (4, 6746803), (7, 3855316), (14, 1927658), (28, 963829), (47, 574196), (94, 287098), (188, 143549), (329, 82028), (658, 41014), (1316, 20507)]