207731871

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{881}}^1$

素因数の和:1005

約数の個数: 40

約数和(自身を含む): 322727328

約数和(自身を除く): 114995457

約数列:

[1, 3, 9, 27, 41, 71, 81, 123, 213, 369, 639, 881, 1107, 1917, 2643, 2911, 3321, 5751, 7929, 8733, 23787, 26199, 36121, 62551, 71361, 78597, 108363, 187653, 235791, 325089, 562959, 975267, 1688877, 2564591, 2925801, 5066631, 7693773, 23081319, 69243957, 207731871]

約数ペア:

[(1, 207731871), (3, 69243957), (9, 23081319), (27, 7693773), (41, 5066631), (71, 2925801), (81, 2564591), (123, 1688877), (213, 975267), (369, 562959), (639, 325089), (881, 235791), (1107, 187653), (1917, 108363), (2643, 78597), (2911, 71361), (3321, 62551), (5751, 36121), (7929, 26199), (8733, 23787)]