28828233

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:582

約数の個数: 48

約数和(自身を含む): 50918400

約数和(自身を除く): 22090167

約数列:

[1, 3, 7, 9, 21, 29, 31, 63, 87, 93, 203, 217, 261, 279, 509, 609, 651, 899, 1527, 1827, 1953, 2697, 3563, 4581, 6293, 8091, 10689, 14761, 15779, 18879, 32067, 44283, 47337, 56637, 103327, 110453, 132849, 142011, 309981, 331359, 457591, 929943, 994077, 1372773, 3203137, 4118319, 9609411, 28828233]

約数ペア:

[(1, 28828233), (3, 9609411), (7, 4118319), (9, 3203137), (21, 1372773), (29, 994077), (31, 929943), (63, 457591), (87, 331359), (93, 309981), (203, 142011), (217, 132849), (261, 110453), (279, 103327), (509, 56637), (609, 47337), (651, 44283), (899, 32067), (1527, 18879), (1827, 15779), (1953, 14761), (2697, 10689), (3563, 8091), (4581, 6293)]