217939393

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{6397}}^1$

素因数の和:6592

約数の個数: 16

約数和(自身を含む): 258786304

約数和(自身を除く): 40846911

約数列:

[1, 7, 31, 157, 217, 1099, 4867, 6397, 34069, 44779, 198307, 1004329, 1388149, 7030303, 31134199, 217939393]

約数ペア:

[(1, 217939393), (7, 31134199), (31, 7030303), (157, 1388149), (217, 1004329), (1099, 198307), (4867, 44779), (6397, 34069)]