21160433

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{409}}^1$

素因数の和:824

約数の個数: 16

約数和(自身を含む): 25584000

約数和(自身を除く): 4423567

約数列:

[1, 7, 19, 133, 389, 409, 2723, 2863, 7391, 7771, 51737, 54397, 159101, 1113707, 3022919, 21160433]

約数ペア:

[(1, 21160433), (7, 3022919), (19, 1113707), (133, 159101), (389, 54397), (409, 51737), (2723, 7771), (2863, 7391)]