19885820193

素因数分解:

$3^8\times {\mathrm{17}}^1\times {\mathrm{178289}}^1$

素因数の和:178330

約数の個数: 36

約数和(自身を含む): 31581934020

約数和(自身を除く): 11696113827

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 729, 1377, 2187, 4131, 6561, 12393, 37179, 111537, 178289, 534867, 1604601, 3030913, 4813803, 9092739, 14441409, 27278217, 43324227, 81834651, 129972681, 245503953, 389918043, 736511859, 1169754129, 2209535577, 6628606731, 19885820193]

約数ペア:

[(1, 19885820193), (3, 6628606731), (9, 2209535577), (17, 1169754129), (27, 736511859), (51, 389918043), (81, 245503953), (153, 129972681), (243, 81834651), (459, 43324227), (729, 27278217), (1377, 14441409), (2187, 9092739), (4131, 4813803), (6561, 3030913), (12393, 1604601), (37179, 534867), (111537, 178289)]