19998582993

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{193}}^1\times {\mathrm{283}}^1$

素因数の和:747

約数の個数: 64

約数和(自身を含む): 30465884160

約数和(自身を除く): 10467301167

約数列:

[1, 3, 9, 27, 71, 191, 193, 213, 283, 573, 579, 639, 849, 1719, 1737, 1917, 2547, 5157, 5211, 7641, 13561, 13703, 20093, 36863, 40683, 41109, 54053, 54619, 60279, 110589, 122049, 123327, 162159, 163857, 180837, 331767, 366147, 369981, 486477, 491571, 542511, 995301, 1459431, 1474713, 2617273, 3837763, 3877949, 7851819, 10432229, 11513289, 11633847, 23555457, 31296687, 34539867, 34901541, 70666371, 93890061, 103619601, 104704623, 281670183, 740688259, 2222064777, 6666194331, 19998582993]

約数ペア:

[(1, 19998582993), (3, 6666194331), (9, 2222064777), (27, 740688259), (71, 281670183), (191, 104704623), (193, 103619601), (213, 93890061), (283, 70666371), (573, 34901541), (579, 34539867), (639, 31296687), (849, 23555457), (1719, 11633847), (1737, 11513289), (1917, 10432229), (2547, 7851819), (5157, 3877949), (5211, 3837763), (7641, 2617273), (13561, 1474713), (13703, 1459431), (20093, 995301), (36863, 542511), (40683, 491571), (41109, 486477), (54053, 369981), (54619, 366147), (60279, 331767), (110589, 180837), (122049, 163857), (123327, 162159)]