28880391

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{1709}}^1$

素因数の和:1886

約数の個数: 16

約数和(自身を含む): 39726720

約数和(自身を除く): 10846329

約数列:

[1, 3, 43, 129, 131, 393, 1709, 5127, 5633, 16899, 73487, 220461, 223879, 671637, 9626797, 28880391]

約数ペア:

[(1, 28880391), (3, 9626797), (43, 671637), (129, 223879), (131, 220461), (393, 73487), (1709, 16899), (5127, 5633)]