248196221

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20507}}^1$

素因数の和:20553

約数の個数: 24

約数和(自身を含む): 327307680

約数和(自身を除く): 79111459

約数列:

[1, 7, 13, 19, 49, 91, 133, 247, 637, 931, 1729, 12103, 20507, 143549, 266591, 389633, 1004843, 1866137, 2727431, 5065229, 13062959, 19092017, 35456603, 248196221]

約数ペア:

[(1, 248196221), (7, 35456603), (13, 19092017), (19, 13062959), (49, 5065229), (91, 2727431), (133, 1866137), (247, 1004843), (637, 389633), (931, 266591), (1729, 143549), (12103, 20507)]