389940481

素因数分解:

$7^2\times {\mathrm{193}}^1\times {\mathrm{41233}}^1$

素因数の和:41440

約数の個数: 12

約数和(自身を含む): 455965572

約数和(自身を除く): 66025091

約数列:

[1, 7, 49, 193, 1351, 9457, 41233, 288631, 2020417, 7957969, 55705783, 389940481]

約数ペア:

[(1, 389940481), (7, 55705783), (49, 7957969), (193, 2020417), (1351, 288631), (9457, 41233)]