21473343

素因数分解:

$3^4\times {\mathrm{353}}^1\times {\mathrm{751}}^1$

素因数の和:1116

約数の個数: 20

約数和(自身を含む): 32211168

約数和(自身を除く): 10737825

約数列:

[1, 3, 9, 27, 81, 353, 751, 1059, 2253, 3177, 6759, 9531, 20277, 28593, 60831, 265103, 795309, 2385927, 7157781, 21473343]

約数ペア:

[(1, 21473343), (3, 7157781), (9, 2385927), (27, 795309), (81, 265103), (353, 60831), (751, 28593), (1059, 20277), (2253, 9531), (3177, 6759)]