399387709

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{34939}}^1$

素因数の和:35040

約数の個数: 16

約数和(自身を含む): 483010560

約数和(自身を除く): 83622851

約数列:

[1, 7, 23, 71, 161, 497, 1633, 11431, 34939, 244573, 803597, 2480669, 5625179, 17364683, 57055387, 399387709]

約数ペア:

[(1, 399387709), (7, 57055387), (23, 17364683), (71, 5625179), (161, 2480669), (497, 803597), (1633, 244573), (11431, 34939)]