28987383

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 41997312

約数和(自身を除く): 13009929

約数列:

[1, 3, 23, 61, 69, 71, 97, 183, 213, 291, 1403, 1633, 2231, 4209, 4331, 4899, 5917, 6693, 6887, 12993, 17751, 20661, 99613, 136091, 158401, 298839, 408273, 420107, 475203, 1260321, 9662461, 28987383]

約数ペア:

[(1, 28987383), (3, 9662461), (23, 1260321), (61, 475203), (69, 420107), (71, 408273), (97, 298839), (183, 158401), (213, 136091), (291, 99613), (1403, 20661), (1633, 17751), (2231, 12993), (4209, 6887), (4331, 6693), (4899, 5917)]