18200997

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:370

約数の個数: 32

約数和(自身を含む): 28152960

約数和(自身を除く): 9951963

約数列:

[1, 3, 9, 27, 43, 61, 129, 183, 257, 387, 549, 771, 1161, 1647, 2313, 2623, 6939, 7869, 11051, 15677, 23607, 33153, 47031, 70821, 99459, 141093, 298377, 423279, 674111, 2022333, 6066999, 18200997]

約数ペア:

[(1, 18200997), (3, 6066999), (9, 2022333), (27, 674111), (43, 423279), (61, 298377), (129, 141093), (183, 99459), (257, 70821), (387, 47031), (549, 33153), (771, 23607), (1161, 15677), (1647, 11051), (2313, 7869), (2623, 6939)]