28805361

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1889}}^1$

素因数の和:1945

約数の個数: 32

約数和(自身を含む): 45722880

約数和(自身を除く): 16917519

約数列:

[1, 3, 13, 17, 23, 39, 51, 69, 221, 299, 391, 663, 897, 1173, 1889, 5083, 5667, 15249, 24557, 32113, 43447, 73671, 96339, 130341, 417469, 564811, 738599, 1252407, 1694433, 2215797, 9601787, 28805361]

約数ペア:

[(1, 28805361), (3, 9601787), (13, 2215797), (17, 1694433), (23, 1252407), (39, 738599), (51, 564811), (69, 417469), (221, 130341), (299, 96339), (391, 73671), (663, 43447), (897, 32113), (1173, 24557), (1889, 15249), (5083, 5667)]