201990904790

素因数分解:

$2^1\times 5^1\times {\mathrm{947}}^1\times {\mathrm{21329557}}^1$

素因数の和:21330511

約数の個数: 16

約数和(自身を含む): 363967577712

約数和(自身を除く): 161976672922

約数列:

[1, 2, 5, 10, 947, 1894, 4735, 9470, 21329557, 42659114, 106647785, 213295570, 20199090479, 40398180958, 100995452395, 201990904790]

約数ペア:

[(1, 201990904790), (2, 100995452395), (5, 40398180958), (10, 20199090479), (947, 213295570), (1894, 106647785), (4735, 42659114), (9470, 21329557)]