205254007

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{21997}}^1$

素因数の和:22078

約数の個数: 16

約数和(自身を含む): 247785472

約数和(自身を除く): 42531465

約数列:

[1, 7, 31, 43, 217, 301, 1333, 9331, 21997, 153979, 681907, 945871, 4773349, 6621097, 29322001, 205254007]

約数ペア:

[(1, 205254007), (7, 29322001), (31, 6621097), (43, 4773349), (217, 945871), (301, 681907), (1333, 153979), (9331, 21997)]