13305215

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4937}}^1$

素因数の和:4967

約数の個数: 24

約数和(自身を含む): 20265552

約数和(自身を除く): 6960337

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 4937, 24685, 34559, 54307, 172795, 241913, 271535, 380149, 1209565, 1900745, 2661043, 13305215]

約数ペア:

[(1, 13305215), (5, 2661043), (7, 1900745), (11, 1209565), (35, 380149), (49, 271535), (55, 241913), (77, 172795), (245, 54307), (385, 34559), (539, 24685), (2695, 4937)]