20508474

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{6689}}^1$

素因数の和:6774

約数の個数: 32

約数和(自身を含む): 47525760

約数和(自身を除く): 27017286

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 73, 146, 219, 438, 511, 1022, 1533, 3066, 6689, 13378, 20067, 40134, 46823, 93646, 140469, 280938, 488297, 976594, 1464891, 2929782, 3418079, 6836158, 10254237, 20508474]

約数ペア:

[(1, 20508474), (2, 10254237), (3, 6836158), (6, 3418079), (7, 2929782), (14, 1464891), (21, 976594), (42, 488297), (73, 280938), (146, 140469), (219, 93646), (438, 46823), (511, 40134), (1022, 20067), (1533, 13378), (3066, 6689)]