28743651

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:340

約数の個数: 36

約数和(自身を含む): 45305832

約数和(自身を除く): 16562181

約数列:

[1, 3, 9, 17, 43, 51, 129, 153, 257, 289, 387, 731, 771, 867, 2193, 2313, 2601, 4369, 6579, 11051, 12427, 13107, 33153, 37281, 39321, 74273, 99459, 111843, 187867, 222819, 563601, 668457, 1690803, 3193739, 9581217, 28743651]

約数ペア:

[(1, 28743651), (3, 9581217), (9, 3193739), (17, 1690803), (43, 668457), (51, 563601), (129, 222819), (153, 187867), (257, 111843), (289, 99459), (387, 74273), (731, 39321), (771, 37281), (867, 33153), (2193, 13107), (2313, 12427), (2601, 11051), (4369, 6579)]