21172518129

素因数分解:

$3^1\times 7^1\times {\mathrm{207409}}^1\times {\mathrm{4861}}^1$

素因数の和:212280

約数の個数: 16

約数和(自身を含む): 32269677440

約数和(自身を除く): 11097159311

約数列:

[1, 3, 7, 21, 4861, 14583, 34027, 102081, 207409, 622227, 1451863, 4355589, 1008215149, 3024645447, 7057506043, 21172518129]

約数ペア:

[(1, 21172518129), (3, 7057506043), (7, 3024645447), (21, 1008215149), (4861, 4355589), (14583, 1451863), (34027, 622227), (102081, 207409)]