128428293

素因数分解:

$3^1\times 7^1\times {\mathrm{743}}^1\times {\mathrm{8231}}^1$

素因数の和:8984

約数の個数: 16

約数和(自身を含む): 195987456

約数和(自身を除く): 67559163

約数列:

[1, 3, 7, 21, 743, 2229, 5201, 8231, 15603, 24693, 57617, 172851, 6115633, 18346899, 42809431, 128428293]

約数ペア:

[(1, 128428293), (3, 42809431), (7, 18346899), (21, 6115633), (743, 172851), (2229, 57617), (5201, 24693), (8231, 15603)]