21629531

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{40129}}^1$

素因数の和:40154

約数の個数: 12

約数和(自身を含む): 27448920

約数和(自身を除く): 5819389

約数列:

[1, 7, 11, 49, 77, 539, 40129, 280903, 441419, 1966321, 3089933, 21629531]

約数ペア:

[(1, 21629531), (7, 3089933), (11, 1966321), (49, 441419), (77, 280903), (539, 40129)]