19191921

素因数分解:

$3^1\times 7^1\times {\mathrm{709}}^1\times {\mathrm{1289}}^1$

素因数の和:2008

約数の個数: 16

約数和(自身を含む): 29308800

約数和(自身を除く): 10116879

約数列:

[1, 3, 7, 21, 709, 1289, 2127, 3867, 4963, 9023, 14889, 27069, 913901, 2741703, 6397307, 19191921]

約数ペア:

[(1, 19191921), (3, 6397307), (7, 2741703), (21, 913901), (709, 27069), (1289, 14889), (2127, 9023), (3867, 4963)]