21605500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{6173}}^1$

素因数の和:6199

約数の個数: 48

約数和(自身を含む): 53936064

約数和(自身を除く): 32330564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 500, 700, 875, 1750, 3500, 6173, 12346, 24692, 30865, 43211, 61730, 86422, 123460, 154325, 172844, 216055, 308650, 432110, 617300, 771625, 864220, 1080275, 1543250, 2160550, 3086500, 4321100, 5401375, 10802750, 21605500]

約数ペア:

[(1, 21605500), (2, 10802750), (4, 5401375), (5, 4321100), (7, 3086500), (10, 2160550), (14, 1543250), (20, 1080275), (25, 864220), (28, 771625), (35, 617300), (50, 432110), (70, 308650), (100, 216055), (125, 172844), (140, 154325), (175, 123460), (250, 86422), (350, 61730), (500, 43211), (700, 30865), (875, 24692), (1750, 12346), (3500, 6173)]