21961436

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{11047}}^1$

素因数の和:11129

約数の個数: 24

約数和(自身を含む): 44545536

約数和(自身を除く): 22584100

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 11047, 22094, 44188, 77329, 154658, 309316, 784337, 1568674, 3137348, 5490359, 10980718, 21961436]

約数ペア:

[(1, 21961436), (2, 10980718), (4, 5490359), (7, 3137348), (14, 1568674), (28, 784337), (71, 309316), (142, 154658), (284, 77329), (497, 44188), (994, 22094), (1988, 11047)]