21955846

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43391}}^1$

素因数の和:43427

約数の個数: 16

約数和(自身を含む): 37490688

約数和(自身を除く): 15534842

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 43391, 86782, 477301, 954602, 997993, 1995986, 10977923, 21955846]

約数ペア:

[(1, 21955846), (2, 10977923), (11, 1995986), (22, 997993), (23, 954602), (46, 477301), (253, 86782), (506, 43391)]