28667499

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 47496960

約数和(自身を除く): 18829461

約数列:

[1, 3, 7, 21, 23, 49, 61, 69, 139, 147, 161, 183, 417, 427, 483, 973, 1127, 1281, 1403, 2919, 2989, 3197, 3381, 4209, 6811, 8479, 8967, 9591, 9821, 20433, 22379, 25437, 29463, 59353, 67137, 68747, 156653, 178059, 195017, 206241, 415471, 469959, 585051, 1246413, 1365119, 4095357, 9555833, 28667499]

約数ペア:

[(1, 28667499), (3, 9555833), (7, 4095357), (21, 1365119), (23, 1246413), (49, 585051), (61, 469959), (69, 415471), (139, 206241), (147, 195017), (161, 178059), (183, 156653), (417, 68747), (427, 67137), (483, 59353), (973, 29463), (1127, 25437), (1281, 22379), (1403, 20433), (2919, 9821), (2989, 9591), (3197, 8967), (3381, 8479), (4209, 6811)]