28323981

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{419}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 49795200

約数和(自身を除く): 21471219

約数列:

[1, 3, 7, 9, 21, 29, 37, 63, 87, 111, 203, 259, 261, 333, 419, 609, 777, 1073, 1257, 1827, 2331, 2933, 3219, 3771, 7511, 8799, 9657, 12151, 15503, 22533, 26397, 36453, 46509, 67599, 85057, 108521, 109359, 139527, 255171, 325563, 449587, 765513, 976689, 1348761, 3147109, 4046283, 9441327, 28323981]

約数ペア:

[(1, 28323981), (3, 9441327), (7, 4046283), (9, 3147109), (21, 1348761), (29, 976689), (37, 765513), (63, 449587), (87, 325563), (111, 255171), (203, 139527), (259, 109359), (261, 108521), (333, 85057), (419, 67599), (609, 46509), (777, 36453), (1073, 26397), (1257, 22533), (1827, 15503), (2331, 12151), (2933, 9657), (3219, 8799), (3771, 7511)]