20486241

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{521}}^1$

素因数の和:801

約数の個数: 24

約数和(自身を含む): 31514184

約数和(自身を除く): 11027943

約数列:

[1, 3, 9, 17, 51, 153, 257, 521, 771, 1563, 2313, 4369, 4689, 8857, 13107, 26571, 39321, 79713, 133897, 401691, 1205073, 2276249, 6828747, 20486241]

約数ペア:

[(1, 20486241), (3, 6828747), (9, 2276249), (17, 1205073), (51, 401691), (153, 133897), (257, 79713), (521, 39321), (771, 26571), (1563, 13107), (2313, 8857), (4369, 4689)]