25501021

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:103

約数の個数: 40

約数和(自身を含む): 34508320

約数和(自身を除く): 9007299

約数列:

[1, 7, 13, 19, 43, 49, 91, 133, 247, 301, 343, 559, 637, 817, 931, 1729, 2107, 2401, 3913, 4459, 5719, 6517, 10621, 12103, 14749, 27391, 31213, 40033, 45619, 74347, 84721, 103243, 191737, 280231, 520429, 593047, 1342159, 1961617, 3643003, 25501021]

約数ペア:

[(1, 25501021), (7, 3643003), (13, 1961617), (19, 1342159), (43, 593047), (49, 520429), (91, 280231), (133, 191737), (247, 103243), (301, 84721), (343, 74347), (559, 45619), (637, 40033), (817, 31213), (931, 27391), (1729, 14749), (2107, 12103), (2401, 10621), (3913, 6517), (4459, 5719)]