21449109

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 32514048

約数和(自身を除く): 11064939

約数列:

[1, 3, 11, 33, 41, 83, 123, 191, 249, 451, 573, 913, 1353, 2101, 2739, 3403, 6303, 7831, 10209, 15853, 23493, 37433, 47559, 86141, 112299, 174383, 258423, 523149, 649973, 1949919, 7149703, 21449109]

約数ペア:

[(1, 21449109), (3, 7149703), (11, 1949919), (33, 649973), (41, 523149), (83, 258423), (123, 174383), (191, 112299), (249, 86141), (451, 47559), (573, 37433), (913, 23493), (1353, 15853), (2101, 10209), (2739, 7831), (3403, 6303)]