78971321

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 97372800

約数和(自身を除く): 18401479

約数列:

[1, 11, 13, 29, 137, 139, 143, 319, 377, 1507, 1529, 1781, 1807, 3973, 4031, 4147, 19043, 19591, 19877, 43703, 44341, 51649, 52403, 209473, 247559, 552247, 568139, 576433, 2723149, 6074717, 7179211, 78971321]

約数ペア:

[(1, 78971321), (11, 7179211), (13, 6074717), (29, 2723149), (137, 576433), (139, 568139), (143, 552247), (319, 247559), (377, 209473), (1507, 52403), (1529, 51649), (1781, 44341), (1807, 43703), (3973, 19877), (4031, 19591), (4147, 19043)]