28317285

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8863}}^1$

素因数の和:8945

約数の個数: 24

約数和(自身を含む): 49780224

約数和(自身を除く): 21462939

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 8863, 26589, 44315, 79767, 132945, 398835, 629273, 1887819, 3146365, 5663457, 9439095, 28317285]

約数ペア:

[(1, 28317285), (3, 9439095), (5, 5663457), (9, 3146365), (15, 1887819), (45, 629273), (71, 398835), (213, 132945), (355, 79767), (639, 44315), (1065, 26589), (3195, 8863)]