201991888131

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{19938001}}^1$

素因数の和:19938322

約数の個数: 16

約数和(自身を含む): 294763421568

約数和(自身を除く): 92771533437

約数列:

[1, 3, 11, 33, 307, 921, 3377, 10131, 19938001, 59814003, 219318011, 657954033, 6120966307, 18362898921, 67330629377, 201991888131]

約数ペア:

[(1, 201991888131), (3, 67330629377), (11, 18362898921), (33, 6120966307), (307, 657954033), (921, 219318011), (3377, 59814003), (10131, 19938001)]