19950489

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{503}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 32175360

約数和(自身を除く): 12224871

約数列:

[1, 3, 9, 13, 27, 39, 113, 117, 339, 351, 503, 1017, 1469, 1509, 3051, 4407, 4527, 6539, 13221, 13581, 19617, 39663, 56839, 58851, 170517, 176553, 511551, 738907, 1534653, 2216721, 6650163, 19950489]

約数ペア:

[(1, 19950489), (3, 6650163), (9, 2216721), (13, 1534653), (27, 738907), (39, 511551), (113, 176553), (117, 170517), (339, 58851), (351, 56839), (503, 39663), (1017, 19617), (1469, 13581), (1509, 13221), (3051, 6539), (4407, 4527)]