21000871395

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2898671}}^1$

素因数の和:2898712

約数の個数: 48

約数和(自身を含む): 43410511872

約数和(自身を除く): 22409640477

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 63, 69, 105, 115, 161, 207, 315, 345, 483, 805, 1035, 1449, 2415, 7245, 2898671, 8696013, 14493355, 20290697, 26088039, 43480065, 60872091, 66669433, 101453485, 130440195, 182616273, 200008299, 304360455, 333347165, 466686031, 600024897, 913081365, 1000041495, 1400058093, 2333430155, 3000124485, 4200174279, 7000290465, 21000871395]

約数ペア:

[(1, 21000871395), (3, 7000290465), (5, 4200174279), (7, 3000124485), (9, 2333430155), (15, 1400058093), (21, 1000041495), (23, 913081365), (35, 600024897), (45, 466686031), (63, 333347165), (69, 304360455), (105, 200008299), (115, 182616273), (161, 130440195), (207, 101453485), (315, 66669433), (345, 60872091), (483, 43480065), (805, 26088039), (1035, 20290697), (1449, 14493355), (2415, 8696013), (7245, 2898671)]