208757619

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{607}}^1$

素因数の和:776

約数の個数: 48

約数和(自身を含む): 355110912

約数和(自身を除く): 146353293

約数列:

[1, 3, 7, 9, 21, 53, 63, 103, 159, 309, 371, 477, 607, 721, 927, 1113, 1821, 2163, 3339, 4249, 5459, 5463, 6489, 12747, 16377, 32171, 38213, 38241, 49131, 62521, 96513, 114639, 187563, 225197, 289539, 343917, 437647, 562689, 675591, 1312941, 2026773, 3313613, 3938823, 9940839, 23195291, 29822517, 69585873, 208757619]

約数ペア:

[(1, 208757619), (3, 69585873), (7, 29822517), (9, 23195291), (21, 9940839), (53, 3938823), (63, 3313613), (103, 2026773), (159, 1312941), (309, 675591), (371, 562689), (477, 437647), (607, 343917), (721, 289539), (927, 225197), (1113, 187563), (1821, 114639), (2163, 96513), (3339, 62521), (4249, 49131), (5459, 38241), (5463, 38213), (6489, 32171), (12747, 16377)]