1257321

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{313}}^1$

素因数の和:432

約数の個数: 16

約数和(自身を含む): 1828736

約数和(自身を除く): 571415

約数列:

[1, 3, 13, 39, 103, 309, 313, 939, 1339, 4017, 4069, 12207, 32239, 96717, 419107, 1257321]

約数ペア:

[(1, 1257321), (3, 419107), (13, 96717), (39, 32239), (103, 12207), (309, 4069), (313, 4017), (939, 1339)]