27920151

素因数分解:

$3^2\times 7^2\times {\mathrm{63311}}^1$

素因数の和:63331

約数の個数: 18

約数和(自身を含む): 46914192

約数和(自身を除く): 18994041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 63311, 189933, 443177, 569799, 1329531, 3102239, 3988593, 9306717, 27920151]

約数ペア:

[(1, 27920151), (3, 9306717), (7, 3988593), (9, 3102239), (21, 1329531), (49, 569799), (63, 443177), (147, 189933), (441, 63311)]