28566069

素因数分解:

$3^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:135

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 21200331

約数列:

[1, 3, 7, 17, 21, 23, 49, 51, 69, 71, 119, 147, 161, 213, 343, 357, 391, 483, 497, 833, 1029, 1127, 1173, 1207, 1491, 1633, 2499, 2737, 3381, 3479, 3621, 4899, 5831, 7889, 8211, 8449, 10437, 11431, 17493, 19159, 23667, 24353, 25347, 27761, 34293, 57477, 59143, 73059, 80017, 83283, 134113, 177429, 194327, 240051, 402339, 414001, 560119, 582981, 1242003, 1360289, 1680357, 4080867, 9522023, 28566069]

約数ペア:

[(1, 28566069), (3, 9522023), (7, 4080867), (17, 1680357), (21, 1360289), (23, 1242003), (49, 582981), (51, 560119), (69, 414001), (71, 402339), (119, 240051), (147, 194327), (161, 177429), (213, 134113), (343, 83283), (357, 80017), (391, 73059), (483, 59143), (497, 57477), (833, 34293), (1029, 27761), (1127, 25347), (1173, 24353), (1207, 23667), (1491, 19159), (1633, 17493), (2499, 11431), (2737, 10437), (3381, 8449), (3479, 8211), (3621, 7889), (4899, 5831)]