19039725

素因数分解:

$3^3\times 5^2\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:507

約数の個数: 48

約数和(自身を含む): 35583040

約数和(自身を除く): 16543315

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 67, 75, 135, 201, 225, 335, 421, 603, 675, 1005, 1263, 1675, 1809, 2105, 3015, 3789, 5025, 6315, 9045, 10525, 11367, 15075, 18945, 28207, 31575, 45225, 56835, 84621, 94725, 141035, 253863, 284175, 423105, 705175, 761589, 1269315, 2115525, 3807945, 6346575, 19039725]

約数ペア:

[(1, 19039725), (3, 6346575), (5, 3807945), (9, 2115525), (15, 1269315), (25, 761589), (27, 705175), (45, 423105), (67, 284175), (75, 253863), (135, 141035), (201, 94725), (225, 84621), (335, 56835), (421, 45225), (603, 31575), (675, 28207), (1005, 18945), (1263, 15075), (1675, 11367), (1809, 10525), (2105, 9045), (3015, 6315), (3789, 5025)]