87991869

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{2657}}^1$

素因数の和:2769

約数の個数: 32

約数和(自身を含む): 142894080

約数和(自身を除く): 54902211

約数列:

[1, 3, 7, 19, 21, 57, 83, 133, 249, 399, 581, 1577, 1743, 2657, 4731, 7971, 11039, 18599, 33117, 50483, 55797, 151449, 220531, 353381, 661593, 1060143, 1543717, 4190089, 4631151, 12570267, 29330623, 87991869]

約数ペア:

[(1, 87991869), (3, 29330623), (7, 12570267), (19, 4631151), (21, 4190089), (57, 1543717), (83, 1060143), (133, 661593), (249, 353381), (399, 220531), (581, 151449), (1577, 55797), (1743, 50483), (2657, 33117), (4731, 18599), (7971, 11039)]