81264141

素因数分解:

$3^4\times 7^1\times {\mathrm{331}}^1\times {\mathrm{433}}^1$

素因数の和:783

約数の個数: 40

約数和(自身を含む): 139477184

約数和(自身を除く): 58213043

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 331, 433, 567, 993, 1299, 2317, 2979, 3031, 3897, 6951, 8937, 9093, 11691, 20853, 26811, 27279, 35073, 62559, 81837, 143323, 187677, 245511, 429969, 1003261, 1289907, 3009783, 3869721, 9029349, 11609163, 27088047, 81264141]

約数ペア:

[(1, 81264141), (3, 27088047), (7, 11609163), (9, 9029349), (21, 3869721), (27, 3009783), (63, 1289907), (81, 1003261), (189, 429969), (331, 245511), (433, 187677), (567, 143323), (993, 81837), (1299, 62559), (2317, 35073), (2979, 27279), (3031, 26811), (3897, 20853), (6951, 11691), (8937, 9093)]