981253819

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{6563}}^1$

素因数の和:6667

約数の個数: 32

約数和(自身を含む): 1270370304

約数和(自身を除く): 289116485

約数列:

[1, 7, 13, 31, 53, 91, 217, 371, 403, 689, 1643, 2821, 4823, 6563, 11501, 21359, 45941, 85319, 149513, 203453, 347839, 597233, 1424171, 2434873, 2644889, 4521907, 10783009, 18514223, 31653349, 75481063, 140179117, 981253819]

約数ペア:

[(1, 981253819), (7, 140179117), (13, 75481063), (31, 31653349), (53, 18514223), (91, 10783009), (217, 4521907), (371, 2644889), (403, 2434873), (689, 1424171), (1643, 597233), (2821, 347839), (4823, 203453), (6563, 149513), (11501, 85319), (21359, 45941)]