19663982

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{787}}^1$

素因数の和:864

約数の個数: 24

約数和(自身を含む): 32864328

約数和(自身を除く): 13200346

約数列:

[1, 2, 13, 26, 31, 62, 403, 787, 806, 961, 1574, 1922, 10231, 12493, 20462, 24397, 24986, 48794, 317161, 634322, 756307, 1512614, 9831991, 19663982]

約数ペア:

[(1, 19663982), (2, 9831991), (13, 1512614), (26, 756307), (31, 634322), (62, 317161), (403, 48794), (787, 24986), (806, 24397), (961, 20462), (1574, 12493), (1922, 10231)]