643065

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{997}}^1$

素因数の和:1048

約数の個数: 16

約数和(自身を含む): 1053888

約数和(自身を除く): 410823

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 997, 2991, 4985, 14955, 42871, 128613, 214355, 643065]

約数ペア:

[(1, 643065), (3, 214355), (5, 128613), (15, 42871), (43, 14955), (129, 4985), (215, 2991), (645, 997)]