20661963

素因数分解:

$3^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{2221}}^1$

素因数の和:2674

約数の個数: 16

約数和(自身を含む): 31570176

約数和(自身を除く): 10908213

約数列:

[1, 3, 7, 21, 443, 1329, 2221, 3101, 6663, 9303, 15547, 46641, 983903, 2951709, 6887321, 20661963]

約数ペア:

[(1, 20661963), (3, 6887321), (7, 2951709), (21, 983903), (443, 46641), (1329, 15547), (2221, 9303), (3101, 6663)]