1664217919

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1187}}^1$

素因数の和:1316

約数の個数: 48

約数和(自身を含む): 2184247296

約数和(自身を除く): 520029377

約数列:

[1, 7, 13, 31, 49, 71, 91, 217, 403, 497, 637, 923, 1187, 1519, 2201, 2821, 3479, 6461, 8309, 15407, 15431, 19747, 28613, 36797, 45227, 58163, 84277, 107849, 108017, 200291, 257579, 478361, 589939, 756119, 1095601, 1402037, 1803053, 2612587, 3348527, 4129573, 7669207, 18288109, 23439689, 33963631, 53684449, 128016763, 237745417, 1664217919]

約数ペア:

[(1, 1664217919), (7, 237745417), (13, 128016763), (31, 53684449), (49, 33963631), (71, 23439689), (91, 18288109), (217, 7669207), (403, 4129573), (497, 3348527), (637, 2612587), (923, 1803053), (1187, 1402037), (1519, 1095601), (2201, 756119), (2821, 589939), (3479, 478361), (6461, 257579), (8309, 200291), (15407, 108017), (15431, 107849), (19747, 84277), (28613, 58163), (36797, 45227)]