12728765

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19141}}^1$

素因数の和:19172

約数の個数: 16

約数和(自身を含む): 18376320

約数和(自身を除く): 5647555

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 19141, 95705, 133987, 363679, 669935, 1818395, 2545753, 12728765]

約数ペア:

[(1, 12728765), (5, 2545753), (7, 1818395), (19, 669935), (35, 363679), (95, 133987), (133, 95705), (665, 19141)]