18869787

素因数分解:

$3^3\times {\mathrm{127}}^1\times {\mathrm{5503}}^1$

素因数の和:5639

約数の個数: 16

約数和(自身を含む): 28180480

約数和(自身を除く): 9310693

約数列:

[1, 3, 9, 27, 127, 381, 1143, 3429, 5503, 16509, 49527, 148581, 698881, 2096643, 6289929, 18869787]

約数ペア:

[(1, 18869787), (3, 6289929), (9, 2096643), (27, 698881), (127, 148581), (381, 49527), (1143, 16509), (3429, 5503)]