20395641

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{42227}}^1$

素因数の和:42260

約数の個数: 16

約数和(自身を含む): 32431104

約数和(自身を除く): 12035463

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 42227, 126681, 295589, 886767, 971221, 2913663, 6798547, 20395641]

約数ペア:

[(1, 20395641), (3, 6798547), (7, 2913663), (21, 971221), (23, 886767), (69, 295589), (161, 126681), (483, 42227)]