9947245

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{3691}}^1$

素因数の和:3721

約数の個数: 24

約数和(自身を含む): 15151968

約数和(自身を除く): 5204723

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 3691, 18455, 25837, 40601, 129185, 180859, 203005, 284207, 904295, 1421035, 1989449, 9947245]

約数ペア:

[(1, 9947245), (5, 1989449), (7, 1421035), (11, 904295), (35, 284207), (49, 203005), (55, 180859), (77, 129185), (245, 40601), (385, 25837), (539, 18455), (2695, 3691)]