21000292750

素因数分解:

$2^1\times 5^3\times {\mathrm{1103}}^1\times {\mathrm{76157}}^1$

素因数の和:77277

約数の個数: 32

約数和(自身を含む): 39348706176

約数和(自身を除く): 18348413426

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 1103, 2206, 5515, 11030, 27575, 55150, 76157, 137875, 152314, 275750, 380785, 761570, 1903925, 3807850, 9519625, 19039250, 84001171, 168002342, 420005855, 840011710, 2100029275, 4200058550, 10500146375, 21000292750]

約数ペア:

[(1, 21000292750), (2, 10500146375), (5, 4200058550), (10, 2100029275), (25, 840011710), (50, 420005855), (125, 168002342), (250, 84001171), (1103, 19039250), (2206, 9519625), (5515, 3807850), (11030, 1903925), (27575, 761570), (55150, 380785), (76157, 275750), (137875, 152314)]