19876389

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{4013}}^1$

素因数の和:4156

約数の個数: 16

約数和(自身を含む): 28772352

約数和(自身を除く): 8895963

約数列:

[1, 3, 13, 39, 127, 381, 1651, 4013, 4953, 12039, 52169, 156507, 509651, 1528953, 6625463, 19876389]

約数ペア:

[(1, 19876389), (3, 6625463), (13, 1528953), (39, 509651), (127, 156507), (381, 52169), (1651, 12039), (4013, 4953)]