21082684

素因数分解:

$2^2\times 7^1\times {\mathrm{643}}^1\times {\mathrm{1171}}^1$

素因数の和:1825

約数の個数: 24

約数和(自身を含む): 42267008

約数和(自身を除く): 21184324

約数列:

[1, 2, 4, 7, 14, 28, 643, 1171, 1286, 2342, 2572, 4501, 4684, 8197, 9002, 16394, 18004, 32788, 752953, 1505906, 3011812, 5270671, 10541342, 21082684]

約数ペア:

[(1, 21082684), (2, 10541342), (4, 5270671), (7, 3011812), (14, 1505906), (28, 752953), (643, 32788), (1171, 18004), (1286, 16394), (2342, 9002), (2572, 8197), (4501, 4684)]