21032703

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{2521}}^1$

素因数の和:2636

約数の個数: 20

約数和(自身を含む): 31736848

約数和(自身を除く): 10704145

約数列:

[1, 3, 9, 27, 81, 103, 309, 927, 2521, 2781, 7563, 8343, 22689, 68067, 204201, 259663, 778989, 2336967, 7010901, 21032703]

約数ペア:

[(1, 21032703), (3, 7010901), (9, 2336967), (27, 778989), (81, 259663), (103, 204201), (309, 68067), (927, 22689), (2521, 8343), (2781, 7563)]