201991167

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{431}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 343968768

約数和(自身を除く): 141977601

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 173, 301, 387, 431, 519, 903, 1211, 1293, 1557, 2709, 3017, 3633, 3879, 7439, 9051, 10899, 18533, 22317, 27153, 52073, 55599, 66951, 74563, 129731, 156219, 166797, 223689, 389193, 468657, 521941, 671067, 1167579, 1565823, 3206209, 4697469, 9618627, 22443463, 28855881, 67330389, 201991167]

約数ペア:

[(1, 201991167), (3, 67330389), (7, 28855881), (9, 22443463), (21, 9618627), (43, 4697469), (63, 3206209), (129, 1565823), (173, 1167579), (301, 671067), (387, 521941), (431, 468657), (519, 389193), (903, 223689), (1211, 166797), (1293, 156219), (1557, 129731), (2709, 74563), (3017, 66951), (3633, 55599), (3879, 52073), (7439, 27153), (9051, 22317), (10899, 18533)]