21125008

素因数分解:

$2^4\times {\mathrm{193}}^1\times {\mathrm{6841}}^1$

素因数の和:7042

約数の個数: 20

約数和(自身を含む): 41147788

約数和(自身を除く): 20022780

約数列:

[1, 2, 4, 8, 16, 193, 386, 772, 1544, 3088, 6841, 13682, 27364, 54728, 109456, 1320313, 2640626, 5281252, 10562504, 21125008]

約数ペア:

[(1, 21125008), (2, 10562504), (4, 5281252), (8, 2640626), (16, 1320313), (193, 109456), (386, 54728), (772, 27364), (1544, 13682), (3088, 6841)]