12738579

素因数分解:

$3^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{449}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 19904400

約数和(自身を除く): 7165821

約数列:

[1, 3, 7, 21, 49, 147, 193, 449, 579, 1347, 1351, 3143, 4053, 9429, 9457, 22001, 28371, 66003, 86657, 259971, 606599, 1819797, 4246193, 12738579]

約数ペア:

[(1, 12738579), (3, 4246193), (7, 1819797), (21, 606599), (49, 259971), (147, 86657), (193, 66003), (449, 28371), (579, 22001), (1347, 9457), (1351, 9429), (3143, 4053)]