11813949

素因数分解:

$3^2\times 7^3\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:159

約数の個数: 48

約数和(自身を含む): 20592000

約数和(自身を除く): 8778051

約数列:

[1, 3, 7, 9, 21, 43, 49, 63, 89, 129, 147, 267, 301, 343, 387, 441, 623, 801, 903, 1029, 1869, 2107, 2709, 3087, 3827, 4361, 5607, 6321, 11481, 13083, 14749, 18963, 26789, 30527, 34443, 39249, 44247, 80367, 91581, 132741, 187523, 241101, 274743, 562569, 1312661, 1687707, 3937983, 11813949]

約数ペア:

[(1, 11813949), (3, 3937983), (7, 1687707), (9, 1312661), (21, 562569), (43, 274743), (49, 241101), (63, 187523), (89, 132741), (129, 91581), (147, 80367), (267, 44247), (301, 39249), (343, 34443), (387, 30527), (441, 26789), (623, 18963), (801, 14749), (903, 13083), (1029, 11481), (1869, 6321), (2107, 5607), (2709, 4361), (3087, 3827)]