20259711

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{1009}}^1$

素因数の和:1135

約数の個数: 24

約数和(自身を含む): 30881760

約数和(自身を除く): 10622049

約数列:

[1, 3, 9, 23, 69, 97, 207, 291, 873, 1009, 2231, 3027, 6693, 9081, 20079, 23207, 69621, 97873, 208863, 293619, 880857, 2251079, 6753237, 20259711]

約数ペア:

[(1, 20259711), (3, 6753237), (9, 2251079), (23, 880857), (69, 293619), (97, 208863), (207, 97873), (291, 69621), (873, 23207), (1009, 20079), (2231, 9081), (3027, 6693)]