21103000

素因数分解:

$2^3\times 5^3\times {\mathrm{47}}^1\times {\mathrm{449}}^1$

素因数の和:517

約数の個数: 64

約数和(自身を含む): 50544000

約数和(自身を除く): 29441000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 47, 50, 94, 100, 125, 188, 200, 235, 250, 376, 449, 470, 500, 898, 940, 1000, 1175, 1796, 1880, 2245, 2350, 3592, 4490, 4700, 5875, 8980, 9400, 11225, 11750, 17960, 21103, 22450, 23500, 42206, 44900, 47000, 56125, 84412, 89800, 105515, 112250, 168824, 211030, 224500, 422060, 449000, 527575, 844120, 1055150, 2110300, 2637875, 4220600, 5275750, 10551500, 21103000]

約数ペア:

[(1, 21103000), (2, 10551500), (4, 5275750), (5, 4220600), (8, 2637875), (10, 2110300), (20, 1055150), (25, 844120), (40, 527575), (47, 449000), (50, 422060), (94, 224500), (100, 211030), (125, 168824), (188, 112250), (200, 105515), (235, 89800), (250, 84412), (376, 56125), (449, 47000), (470, 44900), (500, 42206), (898, 23500), (940, 22450), (1000, 21103), (1175, 17960), (1796, 11750), (1880, 11225), (2245, 9400), (2350, 8980), (3592, 5875), (4490, 4700)]