20315351

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{21821}}^1$

素因数の和:21854

約数の個数: 12

約数和(自身を含む): 24877080

約数和(自身を除く): 4561729

約数列:

[1, 7, 19, 49, 133, 931, 21821, 152747, 414599, 1069229, 2902193, 20315351]

約数ペア:

[(1, 20315351), (7, 2902193), (19, 1069229), (49, 414599), (133, 152747), (931, 21821)]