409189401

素因数分解:

$3^5\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{641}}^1$

素因数の和:764

約数の個数: 48

約数和(自身を含む): 639370368

約数和(自身を除く): 230180967

約数列:

[1, 3, 9, 27, 37, 71, 81, 111, 213, 243, 333, 639, 641, 999, 1917, 1923, 2627, 2997, 5751, 5769, 7881, 8991, 17253, 17307, 23643, 23717, 45511, 51921, 70929, 71151, 136533, 155763, 212787, 213453, 409599, 638361, 640359, 1228797, 1683907, 1921077, 3686391, 5051721, 5763231, 11059173, 15155163, 45465489, 136396467, 409189401]

約数ペア:

[(1, 409189401), (3, 136396467), (9, 45465489), (27, 15155163), (37, 11059173), (71, 5763231), (81, 5051721), (111, 3686391), (213, 1921077), (243, 1683907), (333, 1228797), (639, 640359), (641, 638361), (999, 409599), (1917, 213453), (1923, 212787), (2627, 155763), (2997, 136533), (5751, 71151), (5769, 70929), (7881, 51921), (8991, 45511), (17253, 23717), (17307, 23643)]