1991165

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{883}}^1$

素因数の和:940

約数の個数: 16

約数和(自身を含む): 2673216

約数和(自身を除く): 682051

約数列:

[1, 5, 11, 41, 55, 205, 451, 883, 2255, 4415, 9713, 36203, 48565, 181015, 398233, 1991165]

約数ペア:

[(1, 1991165), (5, 398233), (11, 181015), (41, 48565), (55, 36203), (205, 9713), (451, 4415), (883, 2255)]