18875151

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 31299840

約数和(自身を除く): 12424689

約数列:

[1, 3, 9, 17, 19, 43, 51, 57, 129, 151, 153, 171, 323, 387, 453, 731, 817, 969, 1359, 2193, 2451, 2567, 2869, 2907, 6493, 6579, 7353, 7701, 8607, 13889, 19479, 23103, 25821, 41667, 48773, 58437, 110381, 123367, 125001, 146319, 331143, 370101, 438957, 993429, 1110303, 2097239, 6291717, 18875151]

約数ペア:

[(1, 18875151), (3, 6291717), (9, 2097239), (17, 1110303), (19, 993429), (43, 438957), (51, 370101), (57, 331143), (129, 146319), (151, 125001), (153, 123367), (171, 110381), (323, 58437), (387, 48773), (453, 41667), (731, 25821), (817, 23103), (969, 19479), (1359, 13889), (2193, 8607), (2451, 7701), (2567, 7353), (2869, 6579), (2907, 6493)]