18217925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2137}}^1$

素因数の和:2189

約数の個数: 24

約数和(自身を含む): 25450752

約数和(自身を除く): 7232827

約数列:

[1, 5, 11, 25, 31, 55, 155, 275, 341, 775, 1705, 2137, 8525, 10685, 23507, 53425, 66247, 117535, 331235, 587675, 728717, 1656175, 3643585, 18217925]

約数ペア:

[(1, 18217925), (5, 3643585), (11, 1656175), (25, 728717), (31, 587675), (55, 331235), (155, 117535), (275, 66247), (341, 53425), (775, 23507), (1705, 10685), (2137, 8525)]