21711742

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{1993}}^1$

素因数の和:2427

約数の個数: 16

約数和(自身を含む): 35174160

約数和(自身を除く): 13462418

約数列:

[1, 2, 13, 26, 419, 838, 1993, 3986, 5447, 10894, 25909, 51818, 835067, 1670134, 10855871, 21711742]

約数ペア:

[(1, 21711742), (2, 10855871), (13, 1670134), (26, 835067), (419, 51818), (838, 25909), (1993, 10894), (3986, 5447)]