18661345

素因数分解:

$5^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{353}}^1$

素因数の和:564

約数の個数: 16

約数和(自身を含む): 22896720

約数和(自身を除く): 4235375

約数列:

[1, 5, 97, 109, 353, 485, 545, 1765, 10573, 34241, 38477, 52865, 171205, 192385, 3732269, 18661345]

約数ペア:

[(1, 18661345), (5, 3732269), (97, 192385), (109, 171205), (353, 52865), (485, 38477), (545, 34241), (1765, 10573)]