18121761

素因数分解:

$3^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{919}}^1$

素因数の和:1245

約数の個数: 24

約数和(自身を含む): 30043520

約数和(自身を除く): 11921759

約数列:

[1, 3, 7, 9, 21, 63, 313, 919, 939, 2191, 2757, 2817, 6433, 6573, 8271, 19299, 19719, 57897, 287647, 862941, 2013529, 2588823, 6040587, 18121761]

約数ペア:

[(1, 18121761), (3, 6040587), (7, 2588823), (9, 2013529), (21, 862941), (63, 287647), (313, 57897), (919, 19719), (939, 19299), (2191, 8271), (2757, 6573), (2817, 6433)]