247005808

素因数分解:

$2^4\times 7^1\times {\mathrm{2205409}}^1$

素因数の和:2205424

約数の個数: 20

約数和(自身を含む): 546941680

約数和(自身を除く): 299935872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2205409, 4410818, 8821636, 15437863, 17643272, 30875726, 35286544, 61751452, 123502904, 247005808]

約数ペア:

[(1, 247005808), (2, 123502904), (4, 61751452), (7, 35286544), (8, 30875726), (14, 17643272), (16, 15437863), (28, 8821636), (56, 4410818), (112, 2205409)]