18990531

素因数分解:

$3^4\times 7^1\times {\mathrm{33493}}^1$

素因数の和:33512

約数の個数: 20

約数和(自身を含む): 32422192

約数和(自身を除く): 13431661

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 33493, 100479, 234451, 301437, 703353, 904311, 2110059, 2712933, 6330177, 18990531]

約数ペア:

[(1, 18990531), (3, 6330177), (7, 2712933), (9, 2110059), (21, 904311), (27, 703353), (63, 301437), (81, 234451), (189, 100479), (567, 33493)]