20315174

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{127}}^1\times {\mathrm{661}}^1$

素因数の和:812

約数の個数: 24

約数和(自身を含む): 33809664

約数和(自身を除く): 13494490

約数列:

[1, 2, 11, 22, 121, 127, 242, 254, 661, 1322, 1397, 2794, 7271, 14542, 15367, 30734, 79981, 83947, 159962, 167894, 923417, 1846834, 10157587, 20315174]

約数ペア:

[(1, 20315174), (2, 10157587), (11, 1846834), (22, 923417), (121, 167894), (127, 159962), (242, 83947), (254, 79981), (661, 30734), (1322, 15367), (1397, 14542), (2794, 7271)]