20406925

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10601}}^1$

素因数の和:10629

約数の個数: 24

約数和(自身を含む): 31551552

約数和(自身を除く): 11144627

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 1925, 10601, 53005, 74207, 116611, 265025, 371035, 583055, 816277, 1855175, 2915275, 4081385, 20406925]

約数ペア:

[(1, 20406925), (5, 4081385), (7, 2915275), (11, 1855175), (25, 816277), (35, 583055), (55, 371035), (77, 265025), (175, 116611), (275, 74207), (385, 53005), (1925, 10601)]