28364721

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1$

素因数の和:302

約数の個数: 64

約数和(自身を含む): 51757056

約数和(自身を除く): 23392335

約数列:

[1, 3, 7, 11, 17, 21, 31, 33, 51, 77, 93, 119, 187, 217, 231, 233, 341, 357, 527, 561, 651, 699, 1023, 1309, 1581, 1631, 2387, 2563, 3689, 3927, 3961, 4893, 5797, 7161, 7223, 7689, 11067, 11883, 17391, 17941, 21669, 27727, 40579, 43571, 50561, 53823, 79453, 83181, 121737, 122791, 130713, 151683, 238359, 304997, 368373, 556171, 859537, 914991, 1350701, 1668513, 2578611, 4052103, 9454907, 28364721]

約数ペア:

[(1, 28364721), (3, 9454907), (7, 4052103), (11, 2578611), (17, 1668513), (21, 1350701), (31, 914991), (33, 859537), (51, 556171), (77, 368373), (93, 304997), (119, 238359), (187, 151683), (217, 130713), (231, 122791), (233, 121737), (341, 83181), (357, 79453), (527, 53823), (561, 50561), (651, 43571), (699, 40579), (1023, 27727), (1309, 21669), (1581, 17941), (1631, 17391), (2387, 11883), (2563, 11067), (3689, 7689), (3927, 7223), (3961, 7161), (4893, 5797)]