25209961

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:313

約数の個数: 24

約数和(自身を含む): 30800520

約数和(自身を除く): 5590559

約数列:

[1, 7, 29, 49, 113, 157, 203, 791, 1099, 1421, 3277, 4553, 5537, 7693, 17741, 22939, 31871, 124187, 160573, 223097, 514489, 869309, 3601423, 25209961]

約数ペア:

[(1, 25209961), (7, 3601423), (29, 869309), (49, 514489), (113, 223097), (157, 160573), (203, 124187), (791, 31871), (1099, 22939), (1421, 17741), (3277, 7693), (4553, 5537)]