20303444

素因数分解:

$2^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1459}}^1$

素因数の和:1548

約数の個数: 36

約数和(自身を含む): 41942880

約数和(自身を除く): 21639436

約数列:

[1, 2, 4, 7, 14, 28, 49, 71, 98, 142, 196, 284, 497, 994, 1459, 1988, 2918, 3479, 5836, 6958, 10213, 13916, 20426, 40852, 71491, 103589, 142982, 207178, 285964, 414356, 725123, 1450246, 2900492, 5075861, 10151722, 20303444]

約数ペア:

[(1, 20303444), (2, 10151722), (4, 5075861), (7, 2900492), (14, 1450246), (28, 725123), (49, 414356), (71, 285964), (98, 207178), (142, 142982), (196, 103589), (284, 71491), (497, 40852), (994, 20426), (1459, 13916), (1988, 10213), (2918, 6958), (3479, 5836)]