19976506

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{727}}^1\times {\mathrm{1249}}^1$

素因数の和:1989

約数の個数: 16

約数和(自身を含む): 32760000

約数和(自身を除く): 12783494

約数列:

[1, 2, 11, 22, 727, 1249, 1454, 2498, 7997, 13739, 15994, 27478, 908023, 1816046, 9988253, 19976506]

約数ペア:

[(1, 19976506), (2, 9988253), (11, 1816046), (22, 908023), (727, 27478), (1249, 15994), (1454, 13739), (2498, 7997)]