1217421

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 24

約数和(自身を含む): 1904760

約数和(自身を除く): 687339

約数列:

[1, 3, 9, 17, 51, 73, 109, 153, 219, 327, 657, 981, 1241, 1853, 3723, 5559, 7957, 11169, 16677, 23871, 71613, 135269, 405807, 1217421]

約数ペア:

[(1, 1217421), (3, 405807), (9, 135269), (17, 71613), (51, 23871), (73, 16677), (109, 11169), (153, 7957), (219, 5559), (327, 3723), (657, 1853), (981, 1241)]