209488972

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{680159}}^1$

素因数の和:680181

約数の個数: 24

約数和(自身を含む): 457067520

約数和(自身を除く): 247578548

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 680159, 1360318, 2720636, 4761113, 7481749, 9522226, 14963498, 19044452, 29926996, 52372243, 104744486, 209488972]

約数ペア:

[(1, 209488972), (2, 104744486), (4, 52372243), (7, 29926996), (11, 19044452), (14, 14963498), (22, 9522226), (28, 7481749), (44, 4761113), (77, 2720636), (154, 1360318), (308, 680159)]