18941713

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{2129}}^1$

素因数の和:2208

約数の個数: 16

約数和(自身を含む): 22901760

約数和(自身を除く): 3960047

約数列:

[1, 7, 31, 41, 217, 287, 1271, 2129, 8897, 14903, 65999, 87289, 461993, 611023, 2705959, 18941713]

約数ペア:

[(1, 18941713), (7, 2705959), (31, 611023), (41, 461993), (217, 87289), (287, 65999), (1271, 14903), (2129, 8897)]