20031781

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{11311}}^1$

素因数の和:11352

約数の個数: 16

約数和(自身を含む): 26062848

約数和(自身を除く): 6031067

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 11311, 79177, 124421, 260153, 870947, 1821071, 2861683, 20031781]

約数ペア:

[(1, 20031781), (7, 2861683), (11, 1821071), (23, 870947), (77, 260153), (161, 124421), (253, 79177), (1771, 11311)]