20854419

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{569}}^1\times {\mathrm{643}}^1$

素因数の和:1234

約数の個数: 16

約数和(自身を含む): 29366400

約数和(自身を除く): 8511981

約数列:

[1, 3, 19, 57, 569, 643, 1707, 1929, 10811, 12217, 32433, 36651, 365867, 1097601, 6951473, 20854419]

約数ペア:

[(1, 20854419), (3, 6951473), (19, 1097601), (57, 365867), (569, 36651), (643, 32433), (1707, 12217), (1929, 10811)]