20248319

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:292

約数の個数: 32

約数和(自身を含む): 26880000

約数和(自身を除く): 6631681

約数列:

[1, 7, 13, 19, 49, 91, 133, 239, 247, 343, 637, 931, 1673, 1729, 3107, 4459, 4541, 6517, 11711, 12103, 21749, 31787, 59033, 81977, 84721, 152243, 222509, 413231, 1065701, 1557563, 2892617, 20248319]

約数ペア:

[(1, 20248319), (7, 2892617), (13, 1557563), (19, 1065701), (49, 413231), (91, 222509), (133, 152243), (239, 84721), (247, 81977), (343, 59033), (637, 31787), (931, 21749), (1673, 12103), (1729, 11711), (3107, 6517), (4459, 4541)]