20209145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{3371}}^1$

素因数の和:3496

約数の個数: 16

約数和(自身を含む): 26706240

約数和(自身を除く): 6497095

約数列:

[1, 5, 11, 55, 109, 545, 1199, 3371, 5995, 16855, 37081, 185405, 367439, 1837195, 4041829, 20209145]

約数ペア:

[(1, 20209145), (5, 4041829), (11, 1837195), (55, 367439), (109, 185405), (545, 37081), (1199, 16855), (3371, 5995)]