208068727881

素因数分解:

$3^1\times 7^3\times {\mathrm{521}}^1\times {\mathrm{388109}}^1$

素因数の和:388654

約数の個数: 32

約数和(自身を含む): 324149472000

約数和(自身を除く): 116080744119

約数列:

[1, 3, 7, 21, 49, 147, 343, 521, 1029, 1563, 3647, 10941, 25529, 76587, 178703, 388109, 536109, 1164327, 2716763, 8150289, 19017341, 57052023, 133121387, 202204789, 399364161, 606614367, 1415433523, 4246300569, 9908034661, 29724103983, 69356242627, 208068727881]

約数ペア:

[(1, 208068727881), (3, 69356242627), (7, 29724103983), (21, 9908034661), (49, 4246300569), (147, 1415433523), (343, 606614367), (521, 399364161), (1029, 202204789), (1563, 133121387), (3647, 57052023), (10941, 19017341), (25529, 8150289), (76587, 2716763), (178703, 1164327), (388109, 536109)]