21097925

素因数分解:

$5^2\times {\mathrm{433}}^1\times {\mathrm{1949}}^1$

素因数の和:2392

約数の個数: 12

約数和(自身を含む): 26235300

約数和(自身を除く): 5137375

約数列:

[1, 5, 25, 433, 1949, 2165, 9745, 10825, 48725, 843917, 4219585, 21097925]

約数ペア:

[(1, 21097925), (5, 4219585), (25, 843917), (433, 48725), (1949, 10825), (2165, 9745)]