18865977

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{293}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 27546624

約数和(自身を除く): 8680647

約数列:

[1, 3, 13, 39, 127, 169, 293, 381, 507, 879, 1651, 3809, 4953, 11427, 21463, 37211, 49517, 64389, 111633, 148551, 483743, 1451229, 6288659, 18865977]

約数ペア:

[(1, 18865977), (3, 6288659), (13, 1451229), (39, 483743), (127, 148551), (169, 111633), (293, 64389), (381, 49517), (507, 37211), (879, 21463), (1651, 11427), (3809, 4953)]