20792919

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{9613}}^1$

素因数の和:9726

約数の個数: 16

約数和(自身を含む): 31995392

約数和(自身を除く): 11202473

約数列:

[1, 3, 7, 21, 103, 309, 721, 2163, 9613, 28839, 67291, 201873, 990139, 2970417, 6930973, 20792919]

約数ペア:

[(1, 20792919), (3, 6930973), (7, 2970417), (21, 990139), (103, 201873), (309, 67291), (721, 28839), (2163, 9613)]