18818525

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{6221}}^1$

素因数の和:6253

約数の個数: 18

約数和(自身を含む): 25653306

約数和(自身を除く): 6834781

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 6221, 31105, 68431, 155525, 342155, 752741, 1710775, 3763705, 18818525]

約数ペア:

[(1, 18818525), (5, 3763705), (11, 1710775), (25, 752741), (55, 342155), (121, 155525), (275, 68431), (605, 31105), (3025, 6221)]