21140500

素因数分解:

$2^2\times 5^3\times {\mathrm{42281}}^1$

素因数の和:42300

約数の個数: 24

約数和(自身を含む): 46171944

約数和(自身を除く): 25031444

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 42281, 84562, 169124, 211405, 422810, 845620, 1057025, 2114050, 4228100, 5285125, 10570250, 21140500]

約数ペア:

[(1, 21140500), (2, 10570250), (4, 5285125), (5, 4228100), (10, 2114050), (20, 1057025), (25, 845620), (50, 422810), (100, 211405), (125, 169124), (250, 84562), (500, 42281)]