20800108

素因数分解:

$2^2\times 7^2\times {\mathrm{106123}}^1$

素因数の和:106141

約数の個数: 18

約数和(自身を含む): 42343476

約数和(自身を除く): 21543368

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 106123, 212246, 424492, 742861, 1485722, 2971444, 5200027, 10400054, 20800108]

約数ペア:

[(1, 20800108), (2, 10400054), (4, 5200027), (7, 2971444), (14, 1485722), (28, 742861), (49, 424492), (98, 212246), (196, 106123)]