21949191

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{281}}^1$

素因数の和:564

約数の個数: 32

約数和(自身を含む): 35735040

約数和(自身を除く): 13785849

約数列:

[1, 3, 9, 11, 27, 33, 99, 263, 281, 297, 789, 843, 2367, 2529, 2893, 3091, 7101, 7587, 8679, 9273, 26037, 27819, 73903, 78111, 83457, 221709, 665127, 812933, 1995381, 2438799, 7316397, 21949191]

約数ペア:

[(1, 21949191), (3, 7316397), (9, 2438799), (11, 1995381), (27, 812933), (33, 665127), (99, 221709), (263, 83457), (281, 78111), (297, 73903), (789, 27819), (843, 26037), (2367, 9273), (2529, 8679), (2893, 7587), (3091, 7101)]