20535178

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{1123}}^1$

素因数の和:1389

約数の個数: 16

約数和(自身を含む): 31723776

約数和(自身を除く): 11188598

約数列:

[1, 2, 41, 82, 223, 446, 1123, 2246, 9143, 18286, 46043, 92086, 250429, 500858, 10267589, 20535178]

約数ペア:

[(1, 20535178), (2, 10267589), (41, 500858), (82, 250429), (223, 92086), (446, 46043), (1123, 18286), (2246, 9143)]