18617065

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{661}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 23069376

約数和(自身を除く): 4452311

約数列:

[1, 5, 43, 131, 215, 655, 661, 3305, 5633, 28165, 28423, 86591, 142115, 432955, 3723413, 18617065]

約数ペア:

[(1, 18617065), (5, 3723413), (43, 432955), (131, 142115), (215, 86591), (655, 28423), (661, 28165), (3305, 5633)]