28306377

素因数分解:

$3^2\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:195

約数の個数: 48

約数和(自身を含む): 47960640

約数和(自身を除く): 19654263

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 121, 139, 153, 187, 363, 417, 561, 1089, 1251, 1331, 1529, 1683, 2057, 2363, 3993, 4587, 6171, 7089, 11979, 13761, 16819, 18513, 21267, 22627, 25993, 50457, 67881, 77979, 151371, 185009, 203643, 233937, 285923, 555027, 857769, 1665081, 2573307, 3145153, 9435459, 28306377]

約数ペア:

[(1, 28306377), (3, 9435459), (9, 3145153), (11, 2573307), (17, 1665081), (33, 857769), (51, 555027), (99, 285923), (121, 233937), (139, 203643), (153, 185009), (187, 151371), (363, 77979), (417, 67881), (561, 50457), (1089, 25993), (1251, 22627), (1331, 21267), (1529, 18513), (1683, 16819), (2057, 13761), (2363, 11979), (3993, 7089), (4587, 6171)]