13256215

素因数分解:

$5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{887}}^1$

素因数の和:967

約数の個数: 24

約数和(自身を含む): 18829152

約数和(自身を除く): 5572937

約数列:

[1, 5, 7, 35, 49, 61, 245, 305, 427, 887, 2135, 2989, 4435, 6209, 14945, 31045, 43463, 54107, 217315, 270535, 378749, 1893745, 2651243, 13256215]

約数ペア:

[(1, 13256215), (5, 2651243), (7, 1893745), (35, 378749), (49, 270535), (61, 217315), (245, 54107), (305, 43463), (427, 31045), (887, 14945), (2135, 6209), (2989, 4435)]