28575909

素因数分解:

$3^4\times {\mathrm{97}}^1\times {\mathrm{3637}}^1$

素因数の和:3746

約数の個数: 20

約数和(自身を含む): 43139404

約数和(自身を除く): 14563495

約数列:

[1, 3, 9, 27, 81, 97, 291, 873, 2619, 3637, 7857, 10911, 32733, 98199, 294597, 352789, 1058367, 3175101, 9525303, 28575909]

約数ペア:

[(1, 28575909), (3, 9525303), (9, 3175101), (27, 1058367), (81, 352789), (97, 294597), (291, 98199), (873, 32733), (2619, 10911), (3637, 7857)]