28818513

素因数分解:

$3^2\times {\mathrm{83}}^1\times {\mathrm{173}}^1\times {\mathrm{223}}^1$

素因数の和:485

約数の個数: 24

約数和(自身を含む): 42561792

約数和(自身を除く): 13743279

約数列:

[1, 3, 9, 83, 173, 223, 249, 519, 669, 747, 1557, 2007, 14359, 18509, 38579, 43077, 55527, 115737, 129231, 166581, 347211, 3202057, 9606171, 28818513]

約数ペア:

[(1, 28818513), (3, 9606171), (9, 3202057), (83, 347211), (173, 166581), (223, 129231), (249, 115737), (519, 55527), (669, 43077), (747, 38579), (1557, 18509), (2007, 14359)]