21878045210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{312543503}}^1$

素因数の和:312543517

約数の個数: 16

約数和(自身を含む): 45006264576

約数和(自身を除く): 23128219366

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 312543503, 625087006, 1562717515, 2187804521, 3125435030, 4375609042, 10939022605, 21878045210]

約数ペア:

[(1, 21878045210), (2, 10939022605), (5, 4375609042), (7, 3125435030), (10, 2187804521), (14, 1562717515), (35, 625087006), (70, 312543503)]