21016726

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:288

約数の個数: 32

約数和(自身を含む): 34642080

約数和(自身を除く): 13625354

約数列:

[1, 2, 17, 34, 53, 106, 107, 109, 214, 218, 901, 1802, 1819, 1853, 3638, 3706, 5671, 5777, 11342, 11554, 11663, 23326, 96407, 98209, 192814, 196418, 198271, 396542, 618139, 1236278, 10508363, 21016726]

約数ペア:

[(1, 21016726), (2, 10508363), (17, 1236278), (34, 618139), (53, 396542), (106, 198271), (107, 196418), (109, 192814), (214, 98209), (218, 96407), (901, 23326), (1802, 11663), (1819, 11554), (1853, 11342), (3638, 5777), (3706, 5671)]