19664373

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 28892160

約数和(自身を除く): 9227787

約数列:

[1, 3, 19, 43, 57, 71, 113, 129, 213, 339, 817, 1349, 2147, 2451, 3053, 4047, 4859, 6441, 8023, 9159, 14577, 24069, 58007, 92321, 152437, 174021, 276963, 344989, 457311, 1034967, 6554791, 19664373]

約数ペア:

[(1, 19664373), (3, 6554791), (19, 1034967), (43, 457311), (57, 344989), (71, 276963), (113, 174021), (129, 152437), (213, 92321), (339, 58007), (817, 24069), (1349, 14577), (2147, 9159), (2451, 8023), (3053, 6441), (4047, 4859)]