21491711570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2208809}}^1$

素因数の和:2208962

約数の個数: 32

約数和(自身を含む): 44529609600

約数和(自身を除く): 23037898030

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 139, 278, 695, 973, 1390, 1946, 4865, 9730, 2208809, 4417618, 11044045, 15461663, 22088090, 30923326, 77308315, 154616630, 307024451, 614048902, 1535122255, 2149171157, 3070244510, 4298342314, 10745855785, 21491711570]

約数ペア:

[(1, 21491711570), (2, 10745855785), (5, 4298342314), (7, 3070244510), (10, 2149171157), (14, 1535122255), (35, 614048902), (70, 307024451), (139, 154616630), (278, 77308315), (695, 30923326), (973, 22088090), (1390, 15461663), (1946, 11044045), (4865, 4417618), (9730, 2208809)]