7778349

素因数分解:

$3^4\times {\mathrm{109}}^1\times {\mathrm{881}}^1$

素因数の和:1002

約数の個数: 20

約数和(自身を含む): 11739420

約数和(自身を除く): 3961071

約数列:

[1, 3, 9, 27, 81, 109, 327, 881, 981, 2643, 2943, 7929, 8829, 23787, 71361, 96029, 288087, 864261, 2592783, 7778349]

約数ペア:

[(1, 7778349), (3, 2592783), (9, 864261), (27, 288087), (81, 96029), (109, 71361), (327, 23787), (881, 8829), (981, 7929), (2643, 2943)]