28811211

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{281}}^1$

素因数の和:547

約数の個数: 32

約数和(自身を含む): 45480960

約数和(自身を除く): 16669749

約数列:

[1, 3, 11, 13, 33, 39, 143, 239, 281, 429, 717, 843, 2629, 3091, 3107, 3653, 7887, 9273, 9321, 10959, 34177, 40183, 67159, 102531, 120549, 201477, 738749, 873067, 2216247, 2619201, 9603737, 28811211]

約数ペア:

[(1, 28811211), (3, 9603737), (11, 2619201), (13, 2216247), (33, 873067), (39, 738749), (143, 201477), (239, 120549), (281, 102531), (429, 67159), (717, 40183), (843, 34177), (2629, 10959), (3091, 9321), (3107, 9273), (3653, 7887)]