20862081

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{1039}}^1$

素因数の和:1165

約数の個数: 24

約数和(自身を含む): 31799040

約数和(自身を除く): 10936959

約数列:

[1, 3, 9, 23, 69, 97, 207, 291, 873, 1039, 2231, 3117, 6693, 9351, 20079, 23897, 71691, 100783, 215073, 302349, 907047, 2318009, 6954027, 20862081]

約数ペア:

[(1, 20862081), (3, 6954027), (9, 2318009), (23, 907047), (69, 302349), (97, 215073), (207, 100783), (291, 71691), (873, 23897), (1039, 20079), (2231, 9351), (3117, 6693)]