209909084

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{681523}}^1$

素因数の和:681545

約数の個数: 24

約数和(自身を含む): 457984128

約数和(自身を除く): 248075044

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 681523, 1363046, 2726092, 4770661, 7496753, 9541322, 14993506, 19082644, 29987012, 52477271, 104954542, 209909084]

約数ペア:

[(1, 209909084), (2, 104954542), (4, 52477271), (7, 29987012), (11, 19082644), (14, 14993506), (22, 9541322), (28, 7496753), (44, 4770661), (77, 2726092), (154, 1363046), (308, 681523)]