19870544

素因数分解:

$2^4\times {\mathrm{971}}^1\times {\mathrm{1279}}^1$

素因数の和:2258

約数の個数: 20

約数和(自身を含む): 38568960

約数和(自身を除く): 18698416

約数列:

[1, 2, 4, 8, 16, 971, 1279, 1942, 2558, 3884, 5116, 7768, 10232, 15536, 20464, 1241909, 2483818, 4967636, 9935272, 19870544]

約数ペア:

[(1, 19870544), (2, 9935272), (4, 4967636), (8, 2483818), (16, 1241909), (971, 20464), (1279, 15536), (1942, 10232), (2558, 7768), (3884, 5116)]