20800311

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{7561}}^1$

素因数の和:7702

約数の個数: 16

約数和(自身を含む): 31941888

約数和(自身を除く): 11141577

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 7561, 22683, 52927, 158781, 990491, 2971473, 6933437, 20800311]

約数ペア:

[(1, 20800311), (3, 6933437), (7, 2971473), (21, 990491), (131, 158781), (393, 52927), (917, 22683), (2751, 7561)]