208565523

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{233}}^1\times {\mathrm{257}}^1$

素因数の和:545

約数の個数: 40

約数和(自身を含む): 321420528

約数和(自身を除く): 112855005

約数列:

[1, 3, 9, 27, 43, 81, 129, 233, 257, 387, 699, 771, 1161, 2097, 2313, 3483, 6291, 6939, 10019, 11051, 18873, 20817, 30057, 33153, 59881, 90171, 99459, 179643, 270513, 298377, 538929, 811539, 895131, 1616787, 2574883, 4850361, 7724649, 23173947, 69521841, 208565523]

約数ペア:

[(1, 208565523), (3, 69521841), (9, 23173947), (27, 7724649), (43, 4850361), (81, 2574883), (129, 1616787), (233, 895131), (257, 811539), (387, 538929), (699, 298377), (771, 270513), (1161, 179643), (2097, 99459), (2313, 90171), (3483, 59881), (6291, 33153), (6939, 30057), (10019, 20817), (11051, 18873)]