21784916

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{2803}}^1$

素因数の和:2903

約数の個数: 24

約数和(自身を含む): 40041120

約数和(自身を除く): 18256204

約数列:

[1, 2, 4, 29, 58, 67, 116, 134, 268, 1943, 2803, 3886, 5606, 7772, 11212, 81287, 162574, 187801, 325148, 375602, 751204, 5446229, 10892458, 21784916]

約数ペア:

[(1, 21784916), (2, 10892458), (4, 5446229), (29, 751204), (58, 375602), (67, 325148), (116, 187801), (134, 162574), (268, 81287), (1943, 11212), (2803, 7772), (3886, 5606)]