19640272

素因数分解:

$2^4\times {\mathrm{311}}^1\times {\mathrm{3947}}^1$

素因数の和:4266

約数の個数: 20

約数和(自身を含む): 38185056

約数和(自身を除く): 18544784

約数列:

[1, 2, 4, 8, 16, 311, 622, 1244, 2488, 3947, 4976, 7894, 15788, 31576, 63152, 1227517, 2455034, 4910068, 9820136, 19640272]

約数ペア:

[(1, 19640272), (2, 9820136), (4, 4910068), (8, 2455034), (16, 1227517), (311, 63152), (622, 31576), (1244, 15788), (2488, 7894), (3947, 4976)]