21763417

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:193

約数の個数: 32

約数和(自身を含む): 26853120

約数和(自身を除く): 5089703

約数列:

[1, 13, 17, 19, 71, 73, 221, 247, 323, 923, 949, 1207, 1241, 1349, 1387, 4199, 5183, 15691, 16133, 17537, 18031, 22933, 23579, 67379, 88111, 98477, 298129, 306527, 1145443, 1280201, 1674109, 21763417]

約数ペア:

[(1, 21763417), (13, 1674109), (17, 1280201), (19, 1145443), (71, 306527), (73, 298129), (221, 98477), (247, 88111), (323, 67379), (923, 23579), (949, 22933), (1207, 18031), (1241, 17537), (1349, 16133), (1387, 15691), (4199, 5183)]