857362009

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{431}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 1035141120

約数和(自身を除く): 177779111

約数列:

[1, 7, 31, 89, 103, 217, 431, 623, 721, 2759, 3017, 3193, 9167, 13361, 19313, 22351, 38359, 44393, 64169, 93527, 268513, 284177, 310751, 1189129, 1376183, 1989239, 3950977, 8323903, 9633281, 27656839, 122480287, 857362009]

約数ペア:

[(1, 857362009), (7, 122480287), (31, 27656839), (89, 9633281), (103, 8323903), (217, 3950977), (431, 1989239), (623, 1376183), (721, 1189129), (2759, 310751), (3017, 284177), (3193, 268513), (9167, 93527), (13361, 64169), (19313, 44393), (22351, 38359)]