20519031

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{27691}}^1$

素因数の和:27726

約数の個数: 16

約数和(自身を含む): 31015040

約数和(自身を除く): 10496009

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 27691, 83073, 359983, 526129, 1079949, 1578387, 6839677, 20519031]

約数ペア:

[(1, 20519031), (3, 6839677), (13, 1578387), (19, 1079949), (39, 526129), (57, 359983), (247, 83073), (741, 27691)]