201818991

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{86137}}^1$

素因数の和:86222

約数の個数: 16

約数和(自身を含む): 297692928

約数和(自身を除く): 95873937

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 86137, 258411, 947507, 2842521, 6115727, 18347181, 67272997, 201818991]

約数ペア:

[(1, 201818991), (3, 67272997), (11, 18347181), (33, 6115727), (71, 2842521), (213, 947507), (781, 258411), (2343, 86137)]