20019122

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{1327}}^1$

素因数の和:1745

約数の個数: 16

約数和(自身を含む): 31712640

約数和(自身を除く): 11693518

約数列:

[1, 2, 19, 38, 397, 794, 1327, 2654, 7543, 15086, 25213, 50426, 526819, 1053638, 10009561, 20019122]

約数ペア:

[(1, 20019122), (2, 10009561), (19, 1053638), (38, 526819), (397, 50426), (794, 25213), (1327, 15086), (2654, 7543)]