20717708

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{479}}^1\times {\mathrm{983}}^1$

素因数の和:1477

約数の個数: 24

約数和(自身を含む): 39674880

約数和(自身を除く): 18957172

約数列:

[1, 2, 4, 11, 22, 44, 479, 958, 983, 1916, 1966, 3932, 5269, 10538, 10813, 21076, 21626, 43252, 470857, 941714, 1883428, 5179427, 10358854, 20717708]

約数ペア:

[(1, 20717708), (2, 10358854), (4, 5179427), (11, 1883428), (22, 941714), (44, 470857), (479, 43252), (958, 21626), (983, 21076), (1916, 10813), (1966, 10538), (3932, 5269)]