391890961

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{739}}^1$

素因数の和:925

約数の個数: 32

約数和(自身を含む): 501258240

約数和(自身を除く): 109367279

約数列:

[1, 7, 11, 71, 77, 97, 497, 679, 739, 781, 1067, 5173, 5467, 6887, 7469, 8129, 48209, 52469, 56903, 71683, 75757, 367283, 501781, 530299, 577159, 788513, 4040113, 5089493, 5519591, 35626451, 55984423, 391890961]

約数ペア:

[(1, 391890961), (7, 55984423), (11, 35626451), (71, 5519591), (77, 5089493), (97, 4040113), (497, 788513), (679, 577159), (739, 530299), (781, 501781), (1067, 367283), (5173, 75757), (5467, 71683), (6887, 56903), (7469, 52469), (8129, 48209)]