28078409

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:568

約数の個数: 16

約数和(自身を含む): 30888000

約数和(自身を除く): 2809591

約数列:

[1, 19, 29, 131, 389, 551, 2489, 3799, 7391, 11281, 50959, 72181, 214339, 968221, 1477811, 28078409]

約数ペア:

[(1, 28078409), (19, 1477811), (29, 968221), (131, 214339), (389, 72181), (551, 50959), (2489, 11281), (3799, 7391)]