81839499

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{419}}^1$

素因数の和:631

約数の個数: 32

約数和(自身を含む): 127733760

約数和(自身を除く): 45894261

約数列:

[1, 3, 7, 21, 71, 131, 213, 393, 419, 497, 917, 1257, 1491, 2751, 2933, 8799, 9301, 27903, 29749, 54889, 65107, 89247, 164667, 195321, 208243, 384223, 624729, 1152669, 3897119, 11691357, 27279833, 81839499]

約数ペア:

[(1, 81839499), (3, 27279833), (7, 11691357), (21, 3897119), (71, 1152669), (131, 624729), (213, 384223), (393, 208243), (419, 195321), (497, 164667), (917, 89247), (1257, 65107), (1491, 54889), (2751, 29749), (2933, 27903), (8799, 9301)]