20379425

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{6737}}^1$

素因数の和:6769

約数の個数: 18

約数和(自身を含む): 27780774

約数和(自身を除く): 7401349

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 6737, 33685, 74107, 168425, 370535, 815177, 1852675, 4075885, 20379425]

約数ペア:

[(1, 20379425), (5, 4075885), (11, 1852675), (25, 815177), (55, 370535), (121, 168425), (275, 74107), (605, 33685), (3025, 6737)]