207797821

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{17189}}^1$

素因数の和:17364

約数の個数: 16

約数和(自身を含む): 260737920

約数和(自身を除く): 52940099

約数列:

[1, 7, 11, 77, 157, 1099, 1727, 12089, 17189, 120323, 189079, 1323553, 2698673, 18890711, 29685403, 207797821]

約数ペア:

[(1, 207797821), (7, 29685403), (11, 18890711), (77, 2698673), (157, 1323553), (1099, 189079), (1727, 120323), (12089, 17189)]