17945818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{11489}}^1$

素因数の和:11573

約数の個数: 16

約数和(自身を含む): 29782080

約数和(自身を除く): 11836262

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 11489, 22978, 126379, 252758, 815719, 1631438, 8972909, 17945818]

約数ペア:

[(1, 17945818), (2, 8972909), (11, 1631438), (22, 815719), (71, 252758), (142, 126379), (781, 22978), (1562, 11489)]