12805185

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19853}}^1$

素因数の和:19904

約数の個数: 16

約数和(自身を含む): 20965824

約数和(自身を除く): 8160639

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 19853, 59559, 99265, 297795, 853679, 2561037, 4268395, 12805185]

約数ペア:

[(1, 12805185), (3, 4268395), (5, 2561037), (15, 853679), (43, 297795), (129, 99265), (215, 59559), (645, 19853)]