20753943

素因数分解:

$3^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{2293}}^1$

素因数の和:2734

約数の個数: 16

約数和(自身を含む): 31712256

約数和(自身を除く): 10958313

約数列:

[1, 3, 7, 21, 431, 1293, 2293, 3017, 6879, 9051, 16051, 48153, 988283, 2964849, 6917981, 20753943]

約数ペア:

[(1, 20753943), (3, 6917981), (7, 2964849), (21, 988283), (431, 48153), (1293, 16051), (2293, 9051), (3017, 6879)]