31405239

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{22807}}^1$

素因数の和:22836

約数の個数: 20

約数和(自身を含む): 49675824

約数和(自身を除く): 18270585

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 22807, 68421, 205263, 387719, 615789, 1163157, 1847367, 3489471, 10468413, 31405239]

約数ペア:

[(1, 31405239), (3, 10468413), (9, 3489471), (17, 1847367), (27, 1163157), (51, 615789), (81, 387719), (153, 205263), (459, 68421), (1377, 22807)]