20852377

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^2$

素因数の和:209

約数の個数: 24

約数和(自身を含む): 26625984

約数和(自身を除く): 5773607

約数列:

[1, 7, 13, 43, 73, 91, 301, 511, 559, 949, 3139, 3913, 5329, 6643, 21973, 37303, 40807, 69277, 229147, 285649, 484939, 1604029, 2978911, 20852377]

約数ペア:

[(1, 20852377), (7, 2978911), (13, 1604029), (43, 484939), (73, 285649), (91, 229147), (301, 69277), (511, 40807), (559, 37303), (949, 21973), (3139, 6643), (3913, 5329)]