28400193

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:163

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 19983807

約数列:

[1, 3, 9, 19, 23, 27, 29, 57, 69, 83, 87, 171, 207, 249, 261, 437, 513, 551, 621, 667, 747, 783, 1311, 1577, 1653, 1909, 2001, 2241, 2407, 3933, 4731, 4959, 5727, 6003, 7221, 11799, 12673, 14193, 14877, 17181, 18009, 21663, 36271, 38019, 42579, 45733, 51543, 55361, 64989, 108813, 114057, 137199, 166083, 326439, 342171, 411597, 498249, 979317, 1051859, 1234791, 1494747, 3155577, 9466731, 28400193]

約数ペア:

[(1, 28400193), (3, 9466731), (9, 3155577), (19, 1494747), (23, 1234791), (27, 1051859), (29, 979317), (57, 498249), (69, 411597), (83, 342171), (87, 326439), (171, 166083), (207, 137199), (249, 114057), (261, 108813), (437, 64989), (513, 55361), (551, 51543), (621, 45733), (667, 42579), (747, 38019), (783, 36271), (1311, 21663), (1577, 18009), (1653, 17181), (1909, 14877), (2001, 14193), (2241, 12673), (2407, 11799), (3933, 7221), (4731, 6003), (4959, 5727)]