21000591358

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{1091}}^1\times {\mathrm{506551}}^1$

素因数の和:507663

約数の個数: 16

約数和(自身を含む): 33189287040

約数和(自身を除く): 12188695682

約数列:

[1, 2, 19, 38, 1091, 2182, 20729, 41458, 506551, 1013102, 9624469, 19248938, 552647141, 1105294282, 10500295679, 21000591358]

約数ペア:

[(1, 21000591358), (2, 10500295679), (19, 1105294282), (38, 552647141), (1091, 19248938), (2182, 9624469), (20729, 1013102), (41458, 506551)]