21844780

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{4153}}^1$

素因数の和:4425

約数の個数: 24

約数和(自身を含む): 46059552

約数和(自身を除く): 24214772

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 4153, 5260, 8306, 16612, 20765, 41530, 83060, 1092239, 2184478, 4368956, 5461195, 10922390, 21844780]

約数ペア:

[(1, 21844780), (2, 10922390), (4, 5461195), (5, 4368956), (10, 2184478), (20, 1092239), (263, 83060), (526, 41530), (1052, 20765), (1315, 16612), (2630, 8306), (4153, 5260)]