20538753

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{881}}^1$

素因数の和:1312

約数の個数: 16

約数和(自身を含む): 28929600

約数和(自身を除く): 8390847

約数列:

[1, 3, 19, 57, 409, 881, 1227, 2643, 7771, 16739, 23313, 50217, 360329, 1080987, 6846251, 20538753]

約数ペア:

[(1, 20538753), (3, 6846251), (19, 1080987), (57, 360329), (409, 50217), (881, 23313), (1227, 16739), (2643, 7771)]