21422049

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 32514048

約数和(自身を除く): 11091999

約数列:

[1, 3, 11, 33, 41, 71, 123, 213, 223, 451, 669, 781, 1353, 2343, 2453, 2911, 7359, 8733, 9143, 15833, 27429, 32021, 47499, 96063, 100573, 174163, 301719, 522489, 649153, 1947459, 7140683, 21422049]

約数ペア:

[(1, 21422049), (3, 7140683), (11, 1947459), (33, 649153), (41, 522489), (71, 301719), (123, 174163), (213, 100573), (223, 96063), (451, 47499), (669, 32021), (781, 27429), (1353, 15833), (2343, 9143), (2453, 8733), (2911, 7359)]