28131237

素因数分解:

$3^2\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 41496000

約数和(自身を除く): 13364763

約数列:

[1, 3, 9, 113, 139, 199, 339, 417, 597, 1017, 1251, 1791, 15707, 22487, 27661, 47121, 67461, 82983, 141363, 202383, 248949, 3125693, 9377079, 28131237]

約数ペア:

[(1, 28131237), (3, 9377079), (9, 3125693), (113, 248949), (139, 202383), (199, 141363), (339, 82983), (417, 67461), (597, 47121), (1017, 27661), (1251, 22487), (1791, 15707)]