21558642

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{13873}}^1$

素因数の和:13922

約数の個数: 32

約数和(自身を含む): 50612352

約数和(自身を除く): 29053710

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 74, 111, 222, 259, 518, 777, 1554, 13873, 27746, 41619, 83238, 97111, 194222, 291333, 513301, 582666, 1026602, 1539903, 3079806, 3593107, 7186214, 10779321, 21558642]

約数ペア:

[(1, 21558642), (2, 10779321), (3, 7186214), (6, 3593107), (7, 3079806), (14, 1539903), (21, 1026602), (37, 582666), (42, 513301), (74, 291333), (111, 194222), (222, 97111), (259, 83238), (518, 41619), (777, 27746), (1554, 13873)]