397712609

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{20593}}^1$

素因数の和:20720

約数の個数: 16

約数和(自身を含む): 474485760

約数和(自身を除く): 76773151

約数列:

[1, 7, 31, 89, 217, 623, 2759, 19313, 20593, 144151, 638383, 1832777, 4468681, 12829439, 56816087, 397712609]

約数ペア:

[(1, 397712609), (7, 56816087), (31, 12829439), (89, 4468681), (217, 1832777), (623, 638383), (2759, 144151), (19313, 20593)]