20902869

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9403}}^1$

素因数の和:9441

約数の個数: 24

約数和(自身を含む): 34230560

約数和(自身を除く): 13327691

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 9403, 28209, 84627, 122239, 178657, 366717, 535971, 1100151, 1607913, 2322541, 6967623, 20902869]

約数ペア:

[(1, 20902869), (3, 6967623), (9, 2322541), (13, 1607913), (19, 1100151), (39, 535971), (57, 366717), (117, 178657), (171, 122239), (247, 84627), (741, 28209), (2223, 9403)]