21449968281

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2333}}^1\times {\mathrm{7681}}^1$

素因数の和:10046

約数の個数: 48

約数和(自身を含む): 37293959040

約数和(自身を除く): 15843990759

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 2333, 6999, 7681, 16331, 20997, 23043, 44327, 48993, 53767, 69129, 132981, 145939, 146979, 161301, 310289, 398943, 437817, 483903, 930867, 1021573, 1313451, 2792601, 3064719, 9194157, 17919773, 53759319, 125438411, 161277957, 340475687, 376315233, 1021427061, 1128945699, 2383329809, 3064281183, 7149989427, 21449968281]

約数ペア:

[(1, 21449968281), (3, 7149989427), (7, 3064281183), (9, 2383329809), (19, 1128945699), (21, 1021427061), (57, 376315233), (63, 340475687), (133, 161277957), (171, 125438411), (399, 53759319), (1197, 17919773), (2333, 9194157), (6999, 3064719), (7681, 2792601), (16331, 1313451), (20997, 1021573), (23043, 930867), (44327, 483903), (48993, 437817), (53767, 398943), (69129, 310289), (132981, 161301), (145939, 146979)]