21538206

素因数分解:

$2^1\times 3^2\times {\mathrm{491}}^1\times {\mathrm{2437}}^1$

素因数の和:2936

約数の個数: 24

約数和(自身を含む): 46780344

約数和(自身を除く): 25242138

約数列:

[1, 2, 3, 6, 9, 18, 491, 982, 1473, 2437, 2946, 4419, 4874, 7311, 8838, 14622, 21933, 43866, 1196567, 2393134, 3589701, 7179402, 10769103, 21538206]

約数ペア:

[(1, 21538206), (2, 10769103), (3, 7179402), (6, 3589701), (9, 2393134), (18, 1196567), (491, 43866), (982, 21933), (1473, 14622), (2437, 8838), (2946, 7311), (4419, 4874)]