19401866

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{80173}}^1$

素因数の和:80197

約数の個数: 12

約数和(自身を含む): 31989426

約数和(自身を除く): 12587560

約数列:

[1, 2, 11, 22, 121, 242, 80173, 160346, 881903, 1763806, 9700933, 19401866]

約数ペア:

[(1, 19401866), (2, 9700933), (11, 1763806), (22, 881903), (121, 160346), (242, 80173)]