20800444

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10463}}^1$

素因数の和:10545

約数の個数: 24

約数和(自身を含む): 42190848

約数和(自身を除く): 21390404

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 10463, 20926, 41852, 73241, 146482, 292964, 742873, 1485746, 2971492, 5200111, 10400222, 20800444]

約数ペア:

[(1, 20800444), (2, 10400222), (4, 5200111), (7, 2971492), (14, 1485746), (28, 742873), (71, 292964), (142, 146482), (284, 73241), (497, 41852), (994, 20926), (1988, 10463)]