18178551

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{439}}^1$

素因数の和:595

約数の個数: 24

約数和(自身を含む): 27181440

約数和(自身を除く): 9002889

約数列:

[1, 3, 9, 43, 107, 129, 321, 387, 439, 963, 1317, 3951, 4601, 13803, 18877, 41409, 46973, 56631, 140919, 169893, 422757, 2019839, 6059517, 18178551]

約数ペア:

[(1, 18178551), (3, 6059517), (9, 2019839), (43, 422757), (107, 169893), (129, 140919), (321, 56631), (387, 46973), (439, 41409), (963, 18877), (1317, 13803), (3951, 4601)]