28920321

素因数分解:

$3^4\times {\mathrm{307}}^1\times {\mathrm{1163}}^1$

素因数の和:1482

約数の個数: 20

約数和(自身を含む): 43379952

約数和(自身を除く): 14459631

約数列:

[1, 3, 9, 27, 81, 307, 921, 1163, 2763, 3489, 8289, 10467, 24867, 31401, 94203, 357041, 1071123, 3213369, 9640107, 28920321]

約数ペア:

[(1, 28920321), (3, 9640107), (9, 3213369), (27, 1071123), (81, 357041), (307, 94203), (921, 31401), (1163, 24867), (2763, 10467), (3489, 8289)]