20420918

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{63419}}^1$

素因数の和:63451

約数の個数: 16

約数和(自身を含む): 36529920

約数和(自身を除く): 16109002

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 63419, 126838, 443933, 887866, 1458637, 2917274, 10210459, 20420918]

約数ペア:

[(1, 20420918), (2, 10210459), (7, 2917274), (14, 1458637), (23, 887866), (46, 443933), (161, 126838), (322, 63419)]