19912690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{284467}}^1$

素因数の和:284481

約数の個数: 16

約数和(自身を含む): 40963392

約数和(自身を除く): 21050702

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 284467, 568934, 1422335, 1991269, 2844670, 3982538, 9956345, 19912690]

約数ペア:

[(1, 19912690), (2, 9956345), (5, 3982538), (7, 2844670), (10, 1991269), (14, 1422335), (35, 568934), (70, 284467)]