19783647

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{13007}}^1$

素因数の和:13039

約数の個数: 18

約数和(自身を含む): 30946032

約数和(自身を除く): 11162385

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 13007, 39021, 117063, 169091, 507273, 1521819, 2198183, 6594549, 19783647]

約数ペア:

[(1, 19783647), (3, 6594549), (9, 2198183), (13, 1521819), (39, 507273), (117, 169091), (169, 117063), (507, 39021), (1521, 13007)]