28481889

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:317

約数の個数: 24

約数和(自身を含む): 40293792

約数和(自身を除く): 11811903

約数列:

[1, 3, 23, 69, 131, 137, 393, 411, 529, 1587, 3013, 3151, 9039, 9453, 17947, 53841, 69299, 72473, 207897, 217419, 412781, 1238343, 9493963, 28481889]

約数ペア:

[(1, 28481889), (3, 9493963), (23, 1238343), (69, 412781), (131, 217419), (137, 207897), (393, 72473), (411, 69299), (529, 53841), (1587, 17947), (3013, 9453), (3151, 9039)]