21138534

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{28643}}^1$

素因数の和:28692

約数の個数: 24

約数和(自身を含む): 46918872

約数和(自身を除く): 25780338

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 123, 246, 369, 738, 28643, 57286, 85929, 171858, 257787, 515574, 1174363, 2348726, 3523089, 7046178, 10569267, 21138534]

約数ペア:

[(1, 21138534), (2, 10569267), (3, 7046178), (6, 3523089), (9, 2348726), (18, 1174363), (41, 515574), (82, 257787), (123, 171858), (246, 85929), (369, 57286), (738, 28643)]