638826478

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1\times {\mathrm{12377}}^1$

素因数の和:12707

約数の個数: 16

約数和(自身を含む): 970534224

約数和(自身を除く): 331707746

約数列:

[1, 2, 131, 197, 262, 394, 12377, 24754, 25807, 51614, 1621387, 2438269, 3242774, 4876538, 319413239, 638826478]

約数ペア:

[(1, 638826478), (2, 319413239), (131, 4876538), (197, 3242774), (262, 2438269), (394, 1621387), (12377, 51614), (24754, 25807)]