21959824

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:343

約数の個数: 40

約数和(自身を含む): 43711488

約数和(自身を除く): 21751664

約数列:

[1, 2, 4, 8, 16, 101, 107, 127, 202, 214, 254, 404, 428, 508, 808, 856, 1016, 1616, 1712, 2032, 10807, 12827, 13589, 21614, 25654, 27178, 43228, 51308, 54356, 86456, 102616, 108712, 172912, 205232, 217424, 1372489, 2744978, 5489956, 10979912, 21959824]

約数ペア:

[(1, 21959824), (2, 10979912), (4, 5489956), (8, 2744978), (16, 1372489), (101, 217424), (107, 205232), (127, 172912), (202, 108712), (214, 102616), (254, 86456), (404, 54356), (428, 51308), (508, 43228), (808, 27178), (856, 25654), (1016, 21614), (1616, 13589), (1712, 12827), (2032, 10807)]