203478261

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{136471}}^1$

素因数の和:136552

約数の個数: 16

約数和(自身を含む): 314431488

約数和(自身を除く): 110953227

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 136471, 409413, 955297, 2865891, 9689441, 29068323, 67826087, 203478261]

約数ペア:

[(1, 203478261), (3, 67826087), (7, 29068323), (21, 9689441), (71, 2865891), (213, 955297), (497, 409413), (1491, 136471)]