28621359

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5689}}^1$

素因数の和:5751

約数の個数: 24

約数和(自身を含む): 45565520

約数和(自身を除く): 16944161

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 5031, 5689, 17067, 51201, 73957, 221871, 244627, 665613, 733881, 2201643, 3180151, 9540453, 28621359]

約数ペア:

[(1, 28621359), (3, 9540453), (9, 3180151), (13, 2201643), (39, 733881), (43, 665613), (117, 244627), (129, 221871), (387, 73957), (559, 51201), (1677, 17067), (5031, 5689)]