21785750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 47623680

約数和(自身を除く): 25837930

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 59, 70, 118, 125, 175, 211, 250, 295, 350, 413, 422, 590, 826, 875, 1055, 1475, 1477, 1750, 2065, 2110, 2950, 2954, 4130, 5275, 7375, 7385, 10325, 10550, 12449, 14750, 14770, 20650, 24898, 26375, 36925, 51625, 52750, 62245, 73850, 87143, 103250, 124490, 174286, 184625, 311225, 369250, 435715, 622450, 871430, 1556125, 2178575, 3112250, 4357150, 10892875, 21785750]

約数ペア:

[(1, 21785750), (2, 10892875), (5, 4357150), (7, 3112250), (10, 2178575), (14, 1556125), (25, 871430), (35, 622450), (50, 435715), (59, 369250), (70, 311225), (118, 184625), (125, 174286), (175, 124490), (211, 103250), (250, 87143), (295, 73850), (350, 62245), (413, 52750), (422, 51625), (590, 36925), (826, 26375), (875, 24898), (1055, 20650), (1475, 14770), (1477, 14750), (1750, 12449), (2065, 10550), (2110, 10325), (2950, 7385), (2954, 7375), (4130, 5275)]