39997377

素因数分解:

$3^2\times 7^2\times {\mathrm{90697}}^1$

素因数の和:90717

約数の個数: 18

約数和(自身を含む): 67207218

約数和(自身を除く): 27209841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 90697, 272091, 634879, 816273, 1904637, 4444153, 5713911, 13332459, 39997377]

約数ペア:

[(1, 39997377), (3, 13332459), (7, 5713911), (9, 4444153), (21, 1904637), (49, 816273), (63, 634879), (147, 272091), (441, 90697)]