81894393

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{17807}}^1$

素因数の和:17893

約数の個数: 24

約数和(自身を含む): 137050368

約数和(自身を除く): 55155975

約数列:

[1, 3, 7, 9, 21, 63, 73, 219, 511, 657, 1533, 4599, 17807, 53421, 124649, 160263, 373947, 1121841, 1299911, 3899733, 9099377, 11699199, 27298131, 81894393]

約数ペア:

[(1, 81894393), (3, 27298131), (7, 11699199), (9, 9099377), (21, 3899733), (63, 1299911), (73, 1121841), (219, 373947), (511, 160263), (657, 124649), (1533, 53421), (4599, 17807)]