1261316

素因数分解:

$2^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{421}}^1$

素因数の和:539

約数の個数: 24

約数和(自身を含む): 2552256

約数和(自身を除く): 1290940

約数列:

[1, 2, 4, 7, 14, 28, 107, 214, 421, 428, 749, 842, 1498, 1684, 2947, 2996, 5894, 11788, 45047, 90094, 180188, 315329, 630658, 1261316]

約数ペア:

[(1, 1261316), (2, 630658), (4, 315329), (7, 180188), (14, 90094), (28, 45047), (107, 11788), (214, 5894), (421, 2996), (428, 2947), (749, 1684), (842, 1498)]