20268171

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{9749}}^1$

素因数の和:9776

約数の個数: 32

約数和(自身を含む): 37440000

約数和(自身を除く): 17171829

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 9749, 29247, 68243, 87741, 107239, 204729, 263223, 321717, 614187, 750673, 965151, 1842561, 2252019, 2895453, 6756057, 20268171]

約数ペア:

[(1, 20268171), (3, 6756057), (7, 2895453), (9, 2252019), (11, 1842561), (21, 965151), (27, 750673), (33, 614187), (63, 321717), (77, 263223), (99, 204729), (189, 107239), (231, 87741), (297, 68243), (693, 29247), (2079, 9749)]