21449620

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{2239}}^1$

素因数の和:2727

約数の個数: 24

約数和(自身を含む): 45158400

約数和(自身を除く): 23708780

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2239, 2395, 4478, 4790, 8956, 9580, 11195, 22390, 44780, 1072481, 2144962, 4289924, 5362405, 10724810, 21449620]

約数ペア:

[(1, 21449620), (2, 10724810), (4, 5362405), (5, 4289924), (10, 2144962), (20, 1072481), (479, 44780), (958, 22390), (1916, 11195), (2239, 9580), (2395, 8956), (4478, 4790)]