20900259

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{136603}}^1$

素因数の和:136626

約数の個数: 12

約数和(自身を含む): 31965336

約数和(自身を除く): 11065077

約数列:

[1, 3, 9, 17, 51, 153, 136603, 409809, 1229427, 2322251, 6966753, 20900259]

約数ペア:

[(1, 20900259), (3, 6966753), (9, 2322251), (17, 1229427), (51, 409809), (153, 136603)]