21658060

素因数分解:

$2^2\times 5^1\times {\mathrm{761}}^1\times {\mathrm{1423}}^1$

素因数の和:2193

約数の個数: 24

約数和(自身を含む): 45573696

約数和(自身を除く): 23915636

約数列:

[1, 2, 4, 5, 10, 20, 761, 1423, 1522, 2846, 3044, 3805, 5692, 7115, 7610, 14230, 15220, 28460, 1082903, 2165806, 4331612, 5414515, 10829030, 21658060]

約数ペア:

[(1, 21658060), (2, 10829030), (4, 5414515), (5, 4331612), (10, 2165806), (20, 1082903), (761, 28460), (1423, 15220), (1522, 14230), (2846, 7610), (3044, 7115), (3805, 5692)]