19987274

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{443}}^1\times {\mathrm{1327}}^1$

素因数の和:1789

約数の個数: 16

約数和(自身を含む): 31840128

約数和(自身を除く): 11852854

約数列:

[1, 2, 17, 34, 443, 886, 1327, 2654, 7531, 15062, 22559, 45118, 587861, 1175722, 9993637, 19987274]

約数ペア:

[(1, 19987274), (2, 9993637), (17, 1175722), (34, 587861), (443, 45118), (886, 22559), (1327, 15062), (2654, 7531)]