81402849

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 134020224

約数和(自身を除く): 52617375

約数列:

[1, 3, 9, 11, 33, 37, 71, 99, 111, 213, 313, 333, 407, 639, 781, 939, 1221, 2343, 2627, 2817, 3443, 3663, 7029, 7881, 10329, 11581, 22223, 23643, 28897, 30987, 34743, 66669, 86691, 104229, 127391, 200007, 244453, 260073, 382173, 733359, 822251, 1146519, 2200077, 2466753, 7400259, 9044761, 27134283, 81402849]

約数ペア:

[(1, 81402849), (3, 27134283), (9, 9044761), (11, 7400259), (33, 2466753), (37, 2200077), (71, 1146519), (99, 822251), (111, 733359), (213, 382173), (313, 260073), (333, 244453), (407, 200007), (639, 127391), (781, 104229), (939, 86691), (1221, 66669), (2343, 34743), (2627, 30987), (2817, 28897), (3443, 23643), (3663, 22223), (7029, 11581), (7881, 10329)]