19986507

素因数分解:

$3^5\times {\mathrm{233}}^1\times {\mathrm{353}}^1$

素因数の和:601

約数の個数: 24

約数和(自身を含む): 30152304

約数和(自身を除く): 10165797

約数列:

[1, 3, 9, 27, 81, 233, 243, 353, 699, 1059, 2097, 3177, 6291, 9531, 18873, 28593, 56619, 82249, 85779, 246747, 740241, 2220723, 6662169, 19986507]

約数ペア:

[(1, 19986507), (3, 6662169), (9, 2220723), (27, 740241), (81, 246747), (233, 85779), (243, 82249), (353, 56619), (699, 28593), (1059, 18873), (2097, 9531), (3177, 6291)]