20407079

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{37861}}^1$

素因数の和:37886

約数の個数: 12

約数和(自身を含む): 25897608

約数和(自身を除く): 5490529

約数列:

[1, 7, 11, 49, 77, 539, 37861, 265027, 416471, 1855189, 2915297, 20407079]

約数ペア:

[(1, 20407079), (7, 2915297), (11, 1855189), (49, 416471), (77, 265027), (539, 37861)]