18986690

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{46309}}^1$

素因数の和:46357

約数の個数: 16

約数和(自身を含む): 35010360

約数和(自身を除く): 16023670

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 46309, 92618, 231545, 463090, 1898669, 3797338, 9493345, 18986690]

約数ペア:

[(1, 18986690), (2, 9493345), (5, 3797338), (10, 1898669), (41, 463090), (82, 231545), (205, 92618), (410, 46309)]