18814985

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{17341}}^1$

素因数の和:17384

約数の個数: 16

約数和(自身を含む): 26637312

約数和(自身を除く): 7822327

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 17341, 86705, 121387, 537571, 606935, 2687855, 3762997, 18814985]

約数ペア:

[(1, 18814985), (5, 3762997), (7, 2687855), (31, 606935), (35, 537571), (155, 121387), (217, 86705), (1085, 17341)]