21784700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31121}}^1$

素因数の和:31142

約数の個数: 36

約数和(自身を含む): 54027792

約数和(自身を除く): 32243092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 31121, 62242, 124484, 155605, 217847, 311210, 435694, 622420, 778025, 871388, 1089235, 1556050, 2178470, 3112100, 4356940, 5446175, 10892350, 21784700]

約数ペア:

[(1, 21784700), (2, 10892350), (4, 5446175), (5, 4356940), (7, 3112100), (10, 2178470), (14, 1556050), (20, 1089235), (25, 871388), (28, 778025), (35, 622420), (50, 435694), (70, 311210), (100, 217847), (140, 155605), (175, 124484), (350, 62242), (700, 31121)]