253689121

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{6337}}^1$

素因数の和:6413

約数の個数: 24

約数和(自身を含む): 317914080

約数和(自身を除く): 64224959

約数列:

[1, 7, 19, 43, 49, 133, 301, 817, 931, 2107, 5719, 6337, 40033, 44359, 120403, 272491, 310513, 842821, 1907437, 5177329, 5899747, 13352059, 36241303, 253689121]

約数ペア:

[(1, 253689121), (7, 36241303), (19, 13352059), (43, 5899747), (49, 5177329), (133, 1907437), (301, 842821), (817, 310513), (931, 272491), (2107, 120403), (5719, 44359), (6337, 40033)]