254592009

素因数分解:

$3^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{12911}}^1$

素因数の和:13237

約数の個数: 24

約数和(自身を含む): 421654272

約数和(自身を除く): 167062263

約数列:

[1, 3, 7, 9, 21, 63, 313, 939, 2191, 2817, 6573, 12911, 19719, 38733, 90377, 116199, 271131, 813393, 4041143, 12123429, 28288001, 36370287, 84864003, 254592009]

約数ペア:

[(1, 254592009), (3, 84864003), (7, 36370287), (9, 28288001), (21, 12123429), (63, 4041143), (313, 813393), (939, 271131), (2191, 116199), (2817, 90377), (6573, 38733), (12911, 19719)]