399888321

素因数分解:

$3^1\times 7^1\times {\mathrm{877}}^1\times {\mathrm{21713}}^1$

素因数の和:22600

約数の個数: 16

約数和(自身を含む): 610076544

約数和(自身を除く): 210188223

約数列:

[1, 3, 7, 21, 877, 2631, 6139, 18417, 21713, 65139, 151991, 455973, 19042301, 57126903, 133296107, 399888321]

約数ペア:

[(1, 399888321), (3, 133296107), (7, 57126903), (21, 19042301), (877, 455973), (2631, 151991), (6139, 65139), (18417, 21713)]