21304269

素因数分解:

$3^3\times 7^2\times {\mathrm{16103}}^1$

素因数の和:16126

約数の個数: 24

約数和(自身を含む): 36717120

約数和(自身を除く): 15412851

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 16103, 48309, 112721, 144927, 338163, 434781, 789047, 1014489, 2367141, 3043467, 7101423, 21304269]

約数ペア:

[(1, 21304269), (3, 7101423), (7, 3043467), (9, 2367141), (21, 1014489), (27, 789047), (49, 434781), (63, 338163), (147, 144927), (189, 112721), (441, 48309), (1323, 16103)]