28316043

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 48761856

約数和(自身を除く): 20445813

約数列:

[1, 3, 7, 9, 21, 47, 63, 73, 131, 141, 219, 329, 393, 423, 511, 657, 917, 987, 1179, 1533, 2751, 2961, 3431, 4599, 6157, 8253, 9563, 10293, 18471, 24017, 28689, 30879, 43099, 55413, 66941, 72051, 86067, 129297, 200823, 216153, 387891, 449461, 602469, 1348383, 3146227, 4045149, 9438681, 28316043]

約数ペア:

[(1, 28316043), (3, 9438681), (7, 4045149), (9, 3146227), (21, 1348383), (47, 602469), (63, 449461), (73, 387891), (131, 216153), (141, 200823), (219, 129297), (329, 86067), (393, 72051), (423, 66941), (511, 55413), (657, 43099), (917, 30879), (987, 28689), (1179, 24017), (1533, 18471), (2751, 10293), (2961, 9563), (3431, 8253), (4599, 6157)]