30919707

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1987}}^1$

素因数の和:2032

約数の個数: 48

約数和(自身を含む): 57890560

約数和(自身を除く): 26970853

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 741, 819, 1197, 1729, 1987, 2223, 5187, 5961, 13909, 15561, 17883, 25831, 37753, 41727, 77493, 113259, 125181, 180817, 232479, 264271, 339777, 490789, 542451, 792813, 1472367, 1627353, 2378439, 3435523, 4417101, 10306569, 30919707]

約数ペア:

[(1, 30919707), (3, 10306569), (7, 4417101), (9, 3435523), (13, 2378439), (19, 1627353), (21, 1472367), (39, 792813), (57, 542451), (63, 490789), (91, 339777), (117, 264271), (133, 232479), (171, 180817), (247, 125181), (273, 113259), (399, 77493), (741, 41727), (819, 37753), (1197, 25831), (1729, 17883), (1987, 15561), (2223, 13909), (5187, 5961)]