21571396

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{6367}}^1$

素因数の和:6400

約数の個数: 36

約数和(自身を含む): 47428864

約数和(自身を除く): 25857468

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 154, 242, 308, 484, 847, 1694, 3388, 6367, 12734, 25468, 44569, 70037, 89138, 140074, 178276, 280148, 490259, 770407, 980518, 1540814, 1961036, 3081628, 5392849, 10785698, 21571396]

約数ペア:

[(1, 21571396), (2, 10785698), (4, 5392849), (7, 3081628), (11, 1961036), (14, 1540814), (22, 980518), (28, 770407), (44, 490259), (77, 280148), (121, 178276), (154, 140074), (242, 89138), (308, 70037), (484, 44569), (847, 25468), (1694, 12734), (3388, 6367)]