21740697

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1031}}^1$

素因数の和:1122

約数の個数: 32

約数和(自身を含む): 35665920

約数和(自身を除く): 13925223

約数列:

[1, 3, 9, 11, 27, 33, 71, 99, 213, 297, 639, 781, 1031, 1917, 2343, 3093, 7029, 9279, 11341, 21087, 27837, 34023, 73201, 102069, 219603, 306207, 658809, 805211, 1976427, 2415633, 7246899, 21740697]

約数ペア:

[(1, 21740697), (3, 7246899), (9, 2415633), (11, 1976427), (27, 805211), (33, 658809), (71, 306207), (99, 219603), (213, 102069), (297, 73201), (639, 34023), (781, 27837), (1031, 21087), (1917, 11341), (2343, 9279), (3093, 7029)]