21880250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{12503}}^1$

素因数の和:12527

約数の個数: 32

約数和(自身を含む): 46814976

約数和(自身を除く): 24934726

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 125, 175, 250, 350, 875, 1750, 12503, 25006, 62515, 87521, 125030, 175042, 312575, 437605, 625150, 875210, 1562875, 2188025, 3125750, 4376050, 10940125, 21880250]

約数ペア:

[(1, 21880250), (2, 10940125), (5, 4376050), (7, 3125750), (10, 2188025), (14, 1562875), (25, 875210), (35, 625150), (50, 437605), (70, 312575), (125, 175042), (175, 125030), (250, 87521), (350, 62515), (875, 25006), (1750, 12503)]