647250981

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{10163}}^1$

素因数の和:10273

約数の個数: 32

約数和(自身を含む): 983549952

約数和(自身を除く): 336298971

約数列:

[1, 3, 13, 23, 39, 69, 71, 213, 299, 897, 923, 1633, 2769, 4899, 10163, 21229, 30489, 63687, 132119, 233749, 396357, 701247, 721573, 2164719, 3038737, 9116211, 9380449, 16596179, 28141347, 49788537, 215750327, 647250981]

約数ペア:

[(1, 647250981), (3, 215750327), (13, 49788537), (23, 28141347), (39, 16596179), (69, 9380449), (71, 9116211), (213, 3038737), (299, 2164719), (897, 721573), (923, 701247), (1633, 396357), (2769, 233749), (4899, 132119), (10163, 63687), (21229, 30489)]