19862227

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:259

約数の個数: 32

約数和(自身を含む): 26210304

約数和(自身を除く): 6348077

約数列:

[1, 7, 11, 31, 53, 77, 157, 217, 341, 371, 583, 1099, 1643, 1727, 2387, 4081, 4867, 8321, 11501, 12089, 18073, 34069, 53537, 58247, 91531, 126511, 257951, 374759, 640717, 1805657, 2837461, 19862227]

約数ペア:

[(1, 19862227), (7, 2837461), (11, 1805657), (31, 640717), (53, 374759), (77, 257951), (157, 126511), (217, 91531), (341, 58247), (371, 53537), (583, 34069), (1099, 18073), (1643, 12089), (1727, 11501), (2387, 8321), (4081, 4867)]