28440087

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{19709}}^1$

素因数の和:19762

約数の個数: 16

約数和(自身を含む): 41942880

約数和(自身を除く): 13502793

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 19709, 59127, 256217, 729233, 768651, 2187699, 9480029, 28440087]

約数ペア:

[(1, 28440087), (3, 9480029), (13, 2187699), (37, 768651), (39, 729233), (111, 256217), (481, 59127), (1443, 19709)]