21411764

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{11317}}^1$

素因数の和:11375

約数の個数: 24

約数和(自身を含む): 41831328

約数和(自身を除く): 20419564

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 11317, 22634, 45268, 124487, 248974, 486631, 497948, 973262, 1946524, 5352941, 10705882, 21411764]

約数ペア:

[(1, 21411764), (2, 10705882), (4, 5352941), (11, 1946524), (22, 973262), (43, 497948), (44, 486631), (86, 248974), (172, 124487), (473, 45268), (946, 22634), (1892, 11317)]