18991270

素因数分解:

$2^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{12577}}^1$

素因数の和:12735

約数の個数: 16

約数和(自身を含む): 34413408

約数和(自身を除く): 15422138

約数列:

[1, 2, 5, 10, 151, 302, 755, 1510, 12577, 25154, 62885, 125770, 1899127, 3798254, 9495635, 18991270]

約数ペア:

[(1, 18991270), (2, 9495635), (5, 3798254), (10, 1899127), (151, 125770), (302, 62885), (755, 25154), (1510, 12577)]