394289

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:140

約数の個数: 16

約数和(自身を含む): 491520

約数和(自身を除く): 97231

約数列:

[1, 7, 23, 31, 79, 161, 217, 553, 713, 1817, 2449, 4991, 12719, 17143, 56327, 394289]

約数ペア:

[(1, 394289), (7, 56327), (23, 17143), (31, 12719), (79, 4991), (161, 2449), (217, 1817), (553, 713)]