21682004

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{4759}}^1$

素因数の和:4847

約数の個数: 24

約数和(自身を含む): 40783680

約数和(自身を除く): 19101676

約数列:

[1, 2, 4, 17, 34, 67, 68, 134, 268, 1139, 2278, 4556, 4759, 9518, 19036, 80903, 161806, 318853, 323612, 637706, 1275412, 5420501, 10841002, 21682004]

約数ペア:

[(1, 21682004), (2, 10841002), (4, 5420501), (17, 1275412), (34, 637706), (67, 323612), (68, 318853), (134, 161806), (268, 80903), (1139, 19036), (2278, 9518), (4556, 4759)]