20966008

素因数分解:

$2^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{3499}}^1$

素因数の和:3619

約数の個数: 32

約数和(自身を含む): 45360000

約数和(自身を除く): 24393992

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 107, 214, 428, 749, 856, 1498, 2996, 3499, 5992, 6998, 13996, 24493, 27992, 48986, 97972, 195944, 374393, 748786, 1497572, 2620751, 2995144, 5241502, 10483004, 20966008]

約数ペア:

[(1, 20966008), (2, 10483004), (4, 5241502), (7, 2995144), (8, 2620751), (14, 1497572), (28, 748786), (56, 374393), (107, 195944), (214, 97972), (428, 48986), (749, 27992), (856, 24493), (1498, 13996), (2996, 6998), (3499, 5992)]