207971911

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1\times {\mathrm{4127}}^1$

素因数の和:4470

約数の個数: 16

約数和(自身を含む): 248868864

約数和(自身を除く): 40896953

約数列:

[1, 7, 23, 161, 313, 2191, 4127, 7199, 28889, 50393, 94921, 664447, 1291751, 9042257, 29710273, 207971911]

約数ペア:

[(1, 207971911), (7, 29710273), (23, 9042257), (161, 1291751), (313, 664447), (2191, 94921), (4127, 50393), (7199, 28889)]