21808188

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{12889}}^1$

素因数の和:12946

約数の個数: 36

約数和(自身を含む): 56303520

約数和(自身を除く): 34495332

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 282, 423, 564, 846, 1692, 12889, 25778, 38667, 51556, 77334, 116001, 154668, 232002, 464004, 605783, 1211566, 1817349, 2423132, 3634698, 5452047, 7269396, 10904094, 21808188]

約数ペア:

[(1, 21808188), (2, 10904094), (3, 7269396), (4, 5452047), (6, 3634698), (9, 2423132), (12, 1817349), (18, 1211566), (36, 605783), (47, 464004), (94, 232002), (141, 154668), (188, 116001), (282, 77334), (423, 51556), (564, 38667), (846, 25778), (1692, 12889)]